{"id":2267,"date":"2023-02-01T11:29:56","date_gmt":"2023-02-01T03:29:56","guid":{"rendered":"https:\/\/www.lcettsg.cn\/code\/?p=2267"},"modified":"2023-05-22T00:24:49","modified_gmt":"2023-05-21T16:24:49","slug":"vue%e5%ad%a6%e4%b9%a0%e7%ac%94%e8%ae%b0%ef%bc%88%e5%b0%9a%e7%a1%85%e8%b0%b7%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.lcettsg.cn\/code\/?p=2267","title":{"rendered":"Vue\u5b66\u4e60\u7b14\u8bb0\uff08\u5c1a\u7845\u8c37\uff09"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Vue\u57fa\u7840<\/h2>\n\n\n\n<h2 class=\"wp-block-heading\">Vue\u662f\u4ec0\u4e48<\/h2>\n\n\n\n<p>\u4e00\u5957\u7528\u4e8e\u6784\u5efa\u7528\u6237\u754c\u9762\u7684\u6e10\u8fdb\u5f0fjavascript\u6846\u67b6\u3002\u6e10\u8fdb\u5f0f\u662f\u6307Vue\u53ef\u4ee5\u81ea\u5e95\u5411\u4e0a\u9010\u5c42\u7684\u5e94\u7528\u3002<br>\u4f5c\u8005\u5c24\u96e8\u6eaa\u30022013\u5e74\u53d1\u5e030.6.0; 2014\u6b63\u5f0f\u5bf9\u5916\u53d1\u5e03; 2015\u5e741.0\u7248;2016\u5e742.0\u7248; 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loading=\"lazy\" decoding=\"async\" width=\"1177\" height=\"367\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/02\/image-1.png\" alt=\"\" class=\"wp-image-2269\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/02\/image-1.png 1177w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/02\/image-1-1000x312.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/02\/image-1-500x156.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/02\/image-1-768x239.png 768w\" sizes=\"(max-width: 1177px) 100vw, 1177px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1395\" height=\"593\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/02\/image-2.png\" alt=\"\" class=\"wp-image-2270\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/02\/image-2.png 1395w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/02\/image-2-1000x425.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/02\/image-2-500x213.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/02\/image-2-768x326.png 768w\" sizes=\"(max-width: 1395px) 100vw, 1395px\" \/><\/figure>\n\n\n\n<p>\u7406\u89e3MVVM\uff1a<\/p>\n\n\n\n<p>1.M\uff1a\u6a21\u578b\uff08Model\uff09\uff0c\u5bf9\u5e94data\u4e2d\u7684\u6570\u636e\u3002<br>2.V\uff1a\u89c6\u56fe\uff08View\uff09\uff0c\u6a21\u578b\u3002<br>3.VM\uff1a\u89c6\u56fe\u6a21\u578b\uff08ViewModel\uff09\uff0cVue\u5b9e\u4f8b\u5bf9\u8c61\u3002<br>\u89c2\u5bdf\u53d1\u73b0\uff1a1.data\u4e2d\u7684\u6240\u6709\u5c5e\u6027\uff0c\u6700\u540e\u90fd\u51fa\u73b0\u5728\u4e86vm\u8eab\u4e0a\u3002<br>2.vm\u8eab\u4e0a\u7684\u6240\u6709\u5c5e\u6027\u53caVue\u539f\u578b\u4e0a\u6240\u6709\u5c5e\u6027\uff0c\u5728Vue\u6a21\u677f\u4e2d\u90fd\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image 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srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-9.png 1287w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-9-1000x648.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-9-500x324.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-9-768x498.png 768w\" sizes=\"(max-width: 531px) 100vw, 531px\" \/><\/figure>\n\n\n\n<p>\u6570\u636e\u4ee3\u7406\uff1a\u901a\u8fc7\u4e00\u4e2a\u5bf9\u8c61\u4ee3\u7406\u5bf9\u53e6\u4e00\u4e2a\u5bf9\u8c61\u4e2d\u5c5e\u6027\u7684\u64cd\u4f5c\uff08\u8bfb\/\u5199\u5165\uff09<\/p>\n\n\n\n<p>1.Vue\u4e2d\u7684\u6570\u636e\u4ee3\u7406:<br>    \u901a\u8fc7vm\u5bf9\u8c61\u6765\u4ee3\u7406data\u5bf9\u8c61\u4e2d\u5c5e\u6027\u7684\u64cd\u4f5c\uff08\u8bfb\/\u5199)<br>2.Vue\u4e2d\u6570\u636e\u4ee3\u7406\u7684\u597d\u5904:<br>    \u66f4\u52a0\u65b9\u4fbf\u7684\u64cd\u4f5cdata\u4e2d\u7684\u6570\u636e<br>3.\u57fa\u672c\u539f\u7406:<br>    \u901a\u8fc7object.defineProperty()\u628adata\u5bf9\u8c61\u4e2d\u6240\u6709\u5c5e\u6027\u6dfb\u52a0\u5230vm\u4e0a\u3002<br>    \u4e3a\u6bcf\u4e00\u4e2a\u6dfb\u52a0\u5230vm\u4e0a\u7684\u5c5e\u6027,\u90fd\u6307\u5b9a\u4e00\u4e2agetter\/setter\u3002<br>    \u5728getter\/setter\u5185\u90e8\u53bb\u64cd\u4f5c\uff08\u8bfb\/\u5199\uff09data\u4e2d\u5bf9\u5e94\u7684\u5c5e\u6027\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8b\u4ef6\u5904\u7406<\/h2>\n\n\n\n<p>\u4e8b\u4ef6\u7684\u57fa\u672c\u4f7f\u7528:<br>1.\u4f7f\u7528v-on:xxx\u6216@xxx\u7ed1\u5b9a\u4e8b\u4ef6\uff0c\u5176\u4e2dxxx\u662f\u4e8b\u4ef6\u540d;<br>2.\u4e8b\u4ef6\u7684\u56de\u8c03\u9700\u8981\u914d\u7f6e\u5728methods\u5bf9\u8c61\u4e2d\uff0c\u6700\u7ec8\u4f1a\u5728vm\u4e0a;<br>3.methods\u4e2d\u914d\u7f6e\u7684\u51fd\u6570\uff0c\u4e0d\u8981\u7528\u7bad\u5934\u51fd\u6570! \u5426\u5219this\u5c31\u4e0d\u662fvm\u4e86;<br>4.methods\u4e2d\u914d\u7f6e\u7684\u51fd\u6570\uff0c\u90fd\u662f\u88abVue\u6240\u7ba1\u7406\u7684\u51fd\u6570\uff0cthis\u7684\u6307\u5411\u662fvm\u6216\u7ec4\u4ef6\u5b9e\u4f8b\u5bf9\u8c61;<br>5.@click=&#8221;demo\u201d\u548c@click=&#8221;demo($event)\u201d\u6548\u679c\u4e00\u81f4\uff0c\u4f46\u540e\u8005\u53ef\u4ee5\u4f20\u53c2;<\/p>\n\n\n\n<p>\u4e8b\u4ef6\u4fee\u9970\u7b26\uff1a\u53ef\u4ee5\u8fde\u7740\u5199\u591a\u4e2a\u4fee\u9970\u7b26<\/p>\n\n\n\n<p>1.prevent\uff1a\u963b\u6b62\u4e8b\u4ef6\u9ed8\u8ba4\u884c\u4e3a\uff08\u5e38\u7528\uff09<br>2.stop\uff1a\u963b\u6b62\u4e8b\u4ef6\u5192\u6ce1\uff08\u5e38\u7528\uff09<br>3.once\uff1a\u4e8b\u4ef6\u53ea\u89e6\u53d1\u4e00\u6b21\uff08\u5e38\u7528\uff09<br>4.capture\uff1a\u4f7f\u7528\u4e8b\u4ef6\u7684\u6355\u83b7\u6a21\u5f0f<br>5.self\uff1a\u53ea\u6709event.target\u662f\u5f53\u524d\u64cd\u4f5c\u7684\u5143\u7d20\u65f6\u624d\u89e6\u53d1\u4e8b\u4ef6<br>6.passive\uff1a\u4e8b\u4ef6\u7684\u9ed8\u8ba4\u884c\u4e3a\u7acb\u5373\u6267\u884c\uff0c\u4e0d\u9700\u8981\u7b49\u5f85\u56de\u8c03\u6267\u884c\u5b8c\u6bd5\u3002<\/p>\n\n\n\n<p>\u952e\u76d8\u4e8b\u4ef6\uff1a<\/p>\n\n\n\n<p>1.Vue\u4e2d\u5e38\u7528\u7684\u6309\u952e\u522b\u540d:<br>    \u56de\u8f66 =&gt; enter<br>    \u5220\u9664=&gt; delete(\u6355\u83b7&#8221;\u5220\u9664\u201d\u548c\u201c\u9000\u683c\u201d\u952e)<br>    \u9000\u51fa=&gt; esc<br>    \u7a7a\u683c=&gt; space<br>    \u6362\u884c=&gt;tab\uff0c\u7279\u6b8a\uff0c\u5fc5\u987b\u914d\u5408keydown\u4f7f\u7528\u3002<br>    \u4e0a =&gt; up<br>    \u4e0b=&gt; down<br>    \u5de6=&gt;left<br>    \u53f3=&gt; right<br>2.Vue\u672a\u63d0\u4f9b\u522b\u540d\u7684\u6309\u952e\uff0c\u53ef\u4ee5\u4f7f\u7528\u6309\u5065\u539f\u59cb\u7684key\u503c\u53bb\u7ed1\u5b9a\uff0c\u4f46\u6ce8\u610f\u8981\u8f6c\u4e3akebab-case(\u77ed\u6a2a\u7ebf\u547d\u540d)<br>3.\u7cfb\u7edf\u4fee\u9970\u952e\uff08\u7528\u6cd5\u7279\u6b8a\uff09:ctrl\u3001alt\u3001shift\u3001meta<br>    (1).\u914d\u5408keyup\u4f7f\u7528: \u6309\u4e0b\u4fee\u9970\u952e\u7684\u540c\u65f6\uff0c\u518d\u6309\u4e0b\u5176\u4ed6\u952e\uff0c\u968f\u540e\u91ca\u653e\u5176\u4ed6\u952e\uff0c\u4e8b\u4ef6\u624d\u88ab\u89e6\u53d1\u3002<br>    (2).\u914d\u5408keydown\u4f7f\u7528:\u6b63\u5e38\u89e6\u53d1\u4e8b\u4ef6\u3002<br>4.\u4e5f\u53ef\u4ee5\u4f7f\u7528keyCode\u53bb\u6307\u5b9a\u5177\u4f53\u7684\u6309\u952e\uff08\u4e0d\u63a8\u8350)<br>5.Vue.config.keyCodes.\u81ea\u5b9a\u4e49\u952e\u540d=\u952e\u7801\uff0c\u53ef\u4ee5\u53bb\u5b9a\u5236\u6309\u952e\u522b\u540d<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u8ba1\u7b97\u5c5e\u6027<\/h2>\n\n\n\n<p>1.\u5b9a\u4e49: \u8981\u7528\u7684\u5c5e\u6027\u4e0d\u5b58\u5728\uff0c\u8981\u901a\u8fc7\u5df2\u6709\u5c5e\u6027\u8ba1\u7b97\u5f97\u6765\u3002<br>2.\u539f\u7406: \u5e95\u5c42\u501f\u52a9\u4e86objcet.defineproperty\u65b9\u6cd5\u63d0\u4f9b\u7684getter\u548csetter.<br>3.get\u51fd\u6570\u4ec0\u4e48\u65f6\u5019\u6267\u884c?<br>    (1).\u521d\u6b21\u8bfb\u53d6\u65f6\u4f1a\u6267\u884c\u4e00\u6b21\u3002<br>    (2).\u5f53\u4f9d\u8d56\u7684\u6570\u636e\u53d1\u751f\u6539\u53d8\u65f6\u4f1a\u88ab\u518d\u6b21\u8c03\u7528\u3002<br>4.\u4f18\u52bf: \u4e0emethods\u5b9e\u73b0\u76f8\u6bd4\uff0c\u5185\u90e8\u6709\u7f13\u5b58\u673a\u5236(\u590d\u7528\uff09\uff0c\u6548\u7387\u66f4\u9ad8\u3001\u8c03\u8bd5\u65b9\u4fbf\u3002<br>5.\u5907\u6ce8:<br>    1.\u8ba1\u7b97\u5c5e\u6027\u6700\u7ec8\u4f1a\u51fa\u73b0\u5728vm\u4e0a\uff0c\u76f4\u63a5\u8bfb\u53d6\u4f7f\u7528\u5373\u53ef\u3002<br>    2.\u5982\u679c\u8ba1\u7b97\u5c5e\u6027\u8981\u88ab\u4fee\u6539\uff0c\u90a3\u5fc5\u987b\u5199set\u51fd\u6570\u53bb\u54cd\u5e94\u4fee\u6539\uff0c\u4e14set\u4e2d\u8981\u5f15\u8d77\u8ba1\u7b97\u65f6\u4f9d\u8d56\u7684\u6570\u636e\u53d1\u751f\u6539\u53d8\u3002<\/p>\n\n\n\n<p>\u7b80\u5199\u5f62\u5f0f\uff1a\u786e\u5b9e\u4e86\u53ea\u9700\u8981\u8bfb\u4e0d\u9700\u8981\u5199\uff0c\u5219\u53ef\u4ee5\u7b80\u5199\u3002\u76f4\u63a5\u5199\u6210\u4e00\u4e2a\u51fd\u6570\u5373\u53ef\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-10.png\" alt=\"\" class=\"wp-image-2539\" width=\"460\" height=\"138\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-10.png 1246w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-10-1000x300.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-10-500x150.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-10-768x231.png 768w\" sizes=\"(max-width: 460px) 100vw, 460px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u76d1\u89c6\u5c5e\u6027watch<\/h2>\n\n\n\n<p>\u63d2\u4ef6\u63a8\u8350\uff1aVue3 Snippets<br>1.\u5f53\u88ab\u76d1\u89c6\u7684\u5c5e\u6027\u53d8\u5316\u65f6\uff0c\u56de\u8c03\u51fd\u6570\u81ea\u52a8\u8c03\u7528\uff0c\u8fdb\u884c\u76f8\u5173\u64cd\u4f5c<br>2.\u76d1\u89c6\u7684\u5c5e\u6027\u5fc5\u987b\u5b58\u5728\uff0c\u624d\u80fd\u8fdb\u884c\u76d1\u89c6!!<br>3.\u76d1\u89c6\u7684\u4e24\u79cd\u5199\u6cd5:<br>    (1).new Vue\u65f6\u4f20\u5165watch\u914d\u7f6e<br>    (2).\u901a\u8fc7vm.$watch\u76d1\u89c6<\/p>\n\n\n\n<p>\u6df1\u5ea6\u76d1\u89c6\uff1a\u9ed8\u8ba4\u4e0d\u5f00\u542f\uff0c\u4e3a\u4e86\u6548\u7387\u3002<br>    (1).vue\u4e2d\u7684watch\u9ed8\u8ba4\u4e0d\u76d1\u6d4b\u5bf9\u8c61\u5185\u90e8\u503c\u7684\u6539\u53d8(\u4e00\u5c42\uff09\u3002<br>    (2).\u914d\u7f6edeep:true\u53ef\u4ee5\u76d1\u6d4b\u5bf9\u8c61\u5185\u90e8\u503c\u6539\u53d8(\u591a\u5c42\uff09\u3002<br>\u5907\u6ce8:<br>    (1).Vue\u81ea\u8eab\u53ef\u4ee5\u76d1\u6d4b\u5bf9\u8c61\u5185\u90e8\u503c\u7684\u6539\u53d8\uff0c\u4f46Vue\u63d0\u4f9b\u7684watch\u9ed8\u8ba4\u4e0d\u53ef\u4ee5!<br>    (2).\u4f7f\u7528watch\u65f6\u6839\u636e\u6570\u636e\u7684\u5177\u4f53\u7ed3\u6784\uff0c\u51b3\u5b9a\u662f\u5426\u91c7\u7528\u6df1\u5ea6\u76d1\u89c6\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u4e0d\u9700\u8981\u7279\u6b8a\u9700\u6c42\uff0c\u53ea\u6709handler\u65f6\uff0c\u53ef\u4ee5\u91c7\u7528\u7b80\u5199\u5f62\u5f0f\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-11.png\" alt=\"\" class=\"wp-image-2543\" width=\"587\" height=\"299\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-11.png 1418w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-11-1000x510.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-11-500x255.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-11-768x392.png 768w\" sizes=\"(max-width: 587px) 100vw, 587px\" \/><\/figure>\n\n\n\n<p>computed\u548clwatch\u4e4b\u95f4\u7684\u533a\u522b:<br>    1.computed\u80fd\u5b8c\u6210\u7684\u529f\u80fd,watch\u90fd\u53ef\u4ee5\u5b8c\u6210\u3002<br>    2.watch\u80fd\u5b8c\u6210\u7684\u529f\u80fd\uff0ccomputed\u4e0d\u4e00\u5b9a\u80fd\u5b8c\u6210\uff0c\u4f8b\u5982: watch\u53ef\u4ee5\u8fdb\u884c\u5f02\u6b65\u64cd\u4f5c\u3002<br>\u4e24\u4e2a\u91cd\u8981\u7684\u5c0f\u539f\u5219:<br>    1.\u6240\u88abVue\u7ba1\u7406\u7684\u51fd\u6570\uff0c\u6700\u597d\u5199\u6210\u666e\u901a\u51fd\u6570\uff0c\u8fd9\u6837this\u7684\u6307\u5411\u624d\u662fvm\u6216\u7ec4\u4ef6\u5b9e\u4f8b\u5bf9\u8c61\u3002<br>    2.\u6240\u6709\u4e0d\u88abVue\u6240\u7ba1\u7406\u7684\u51fd\u6570\uff08\u5b9a\u65f6\u5668\u7684\u56de\u8c03\u51fd\u6570\u3001ajax\u7684\u56de\u8c03\u51fd\u6570\u7b49)\uff0c\u6700\u597d\u5199\u6210\u7bad\u5934\u51fd\u6570\uff0c\u8fd9\u6837this\u7684\u6307\u5411\u624d\u662fvm\u6216\u7ec4\u4ef6\u5b9e\u4f8b\u5bf9\u8c61\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7ed1\u5b9a\u6837\u5f0f<\/h2>\n\n\n\n<p>1.class\u6837\u5f0f<br>    \u5199\u6cd5: class=&#8221;xxx&#8221; xxx\u53ef\u4ee5\u662f\u5b57\u7b26\u4e32\u3001\u5bf9\u8c61\u3001\u6570\u7ec4\u3002<br>    \u5b57\u7b26\u4e32\u5199\u6cd5\u9002\u7528\u4e8e: \u7c7b\u540d\u4e0d\u786e\u5b9a\uff0c\u8981\u52a8\u6001\u83b7\u53d6\u3002<br>    \u5bf9\u8c61\u5199\u6cd5\u9002\u7528\u4e8e: \u8981\u7ed1\u5b9a\u591a\u4e2a\u6837\u5f0f\uff0c\u4e2a\u6570\u4e0d\u786e\u5b9a\uff0c\u540d\u5b57\u4e5f\u4e0d\u786e\u5b9a\u3002<br>    \u6570\u7ec4\u5199\u6cd5\u9002\u7528\u4e8e: \u8981\u7ed1\u5b9a\u591a\u4e2a\u6837\u5f0f\uff0c\u4e2a\u6570\u786e\u5b9a\uff0c\u540d\u5b57\u4e5f\u786e\u5b9a\uff0c\u4f46\u4e0d\u786e\u5b9a\u7528\u4e0d\u7528\u3002<br>2.style\u6837\u5f0f<br>    :style=&#8221;{fontSize: xxx}&#8221;\u5176\u4e2dxxx\u662f\u52a8\u6001\u503c\u3002<br>    :style=&#8221;[a,b]&#8221;\u5176\u4e2da\u3001b\u662f\u6837\u5f0f\u5bf9\u8c61\u3002<\/p>\n\n\n\n<p>Math.random(): \u8fd4\u56de0\u52301\u4e4b\u95f4\u7684\u968f\u673a\u6570\uff0c\u4e0d\u542b1\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-12.png\" alt=\"\" class=\"wp-image-2551\" width=\"472\" height=\"558\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-12.png 1467w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-12-845x1000.png 845w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-12-422x500.png 422w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-12-768x909.png 768w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-12-1297x1536.png 1297w\" sizes=\"(max-width: 472px) 100vw, 472px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u6761\u4ef6\u6e32\u67d3<\/h2>\n\n\n\n<p>1.v-if<br>\u5199\u6cd5:<br>    (1).v-if=&#8221;\u8868\u8fbe\u5f0f&#8221;<br>    (2).v-else-if=&#8221;\u8868\u8fbe\u5f0f&#8221;<br>    (3).v-else=&#8221;\u8868\u8fbe\u5f0f&#8221;<br>\u9002\u7528\u4e8e\uff1a\u5207\u6362\u9891\u7387\u8f83\u4f4e\u7684\u573a\u666f\u3002<br>\u7279\u70b9\uff1a\u4e0d\u5c55\u793a\u7684DOM\u5143\u7d20\u76f4\u63a5\u88ab\u79fb\u9664\u3002<br>\u6ce8\u610f:\uff1av-if\u53ef\u4ee5\u548c:v-else-if\u3001v-else\u4e00\u8d77\u4f7f\u7528\uff0c\u4f46\u8981\u6c42\u7ed3\u6784\u4e0d\u80fd\u88ab\u201c\u6253\u65ad\u201d\u3002<br>\u53ef\u4ee5\u4e0etemplate\u4e00\u8d77\u914d\u5408\u4f7f\u7528\u3002<br>2.v-show<br>\u5199\u6cd5: v-show=&#8221;\u8868\u8fbe\u5f0f&#8221;<br>\u9002\u7528\u4e8e\uff1a\u5207\u6362\u9891\u7387\u8f83\u9ad8\u7684\u573a\u666f\u3002<br>\u7279\u70b9\uff1a\u4e0d\u5c55\u793a\u7684DOM\u5143\u7d20\u672a\u88ab\u79fb\u9664\uff0c\u4ec5\u4ec5\u662f\u4f7f\u7528\u6837\u5f0f\u9690\u85cf\u6389<br>3.\u5907\u6ce8\uff1a\u4f7f\u7528v-if\u7684\u65f6\uff0c\u5143\u7d20\u53ef\u80fd\u65e0\u6cd5\u83b7\u53d6\u5230\uff0c\u800c\u4f7f\u7528v-show\u4e00\u5b9a\u53ef\u4ee5\u83b7\u53d6\u5230\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5217\u8868\u6e32\u67d3<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1059\" height=\"229\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-13.png\" alt=\"\" class=\"wp-image-2556\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-13.png 1059w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-13-1000x216.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-13-500x108.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-13-768x166.png 768w\" sizes=\"(max-width: 1059px) 100vw, 1059px\" \/><\/figure>\n\n\n\n<p>v-for\u6307\u4ee4:<br>1.\u7528\u4e8e\u5c55\u793a\u5217\u8868\u6570\u636e<br>2.\u8bed\u6cd5: v-for=&#8221;(item,index) in xxx&#8221;  :key=&#8221;yyy&#8221;<br>3.\u53ef\u904d\u5386:\u6570\u7ec4\u3001\u5bf9\u8c61\u3001\u5b57\u7b26\u4e32\uff08\u7528\u7684\u5f88\u5c11)\u3001\u6307\u5b9a\u6b21\u6570\uff08\u7528\u7684\u5f88\u5c11)<\/p>\n\n\n\n<p>\u9762\u8bd5\u9898:react.[vue\u4e2d\u7684key\u6709\u4ec0\u4e48\u4f5c\u7528?(key\u7684\u5185\u90e8\u539f\u7406)<br>1.\u865a\u62dfDOM\u4e2dkey\u7684\u4f5c\u7528:<br>key\u662f\u865a\u62dfDOM\u5bf9\u8c61\u7684\u6807\u8bc6\uff0c\u5f53\u72b6\u6001\u4e2d\u7684\u6570\u636e\u53d1\u751f\u53d8\u5316\u65f6\uff0cVue\u4f1a\u6839\u636e\u3010\u65b0\u6570\u636e\u3011<br>\u751f\u6210\u3010\u65b0\u7684\u865a\u62dfDOM) ,<br>\u968f\u540eVue\u8fdb\u884c\u3010\u65b0\u865a\u62dfDOM\u3011\u4e0e\u3010\u65e7\u865a\u62dfDOM\u3011\u7684\u5dee\u5f02\u6bd4\u8f83\uff0c\u6bd4\u8f83\u89c4\u5219\u5982\u4e0b:<br>2.\u5bf9\u6bd4\u89c4\u5219:<br>(1).\u65e7\u865a\u62dfDOM\u4e2d\u627e\u5230\u4e86\u4e0e\u65b0\u865a\u62dfDOM\u76f8\u540c\u7684key:<br>\u56de.\u82e5\u865a\u62dfDOM\u4e2d\u5185\u5bb9\u6ca1\u53d8,\u76f4\u63a5\u4f7f\u7528\u4e4b\u524d\u7684\u771f\u5b9eDOM !<br>2.\u82e5\u865a\u62dfDOM\u4e2d\u5185\u5bb9\u53d8\u4e86\uff0c\u5219\u751f\u6210\u65b0\u7684\u771f\u5b9eDOM\uff0c\u968f\u540e\u66ff\u6362\u6389\u9875\u9762\u4e2d\u4e4b\u524d\u7684<br>\u771f\u5b9eDOM.<br>(2).\u65e7\u865a\u62dfDOM\u4e2d\u672a\u627e\u5230\u4e0e\u65b0\u865a\u62dfDOM\u76f8\u540c\u7684key<br>\u521b\u5efa\u65b0\u7684\u771f\u5b9eDOM\uff0c\u968f\u540e\u6e32\u67d3\u5230\u5230\u9875\u9762\u3002<br>3\u3002\u7528index\u4f5c\u4e3akey\u53ef\u80fd\u4f1a\u5f15\u53d1\u7684\u95ee\u9898:<br>1\u3002\u82e5\u5bf9\u6570\u636e\u8fdb\u884c:\u9006\u5e8f\u6dfb\u52a0\u3001<br>\u9006\u5e8f\u5220\u9664\u7b49\u7834\u574f\u987a\u5e8f\u64cd\u4f5c:<br>\u4f1a\u4ea7\u751f\u6ca1\u6709\u5fc5\u8981\u7684\u771f\u5b9eDOM\u66f4\u65b0==&gt;\u754c\u9762\u6548\u679c\u6ca1\u95ee\u9898\uff0c\u4f46\u6548\u7387\u4f4e.<br>2\uff0e\u5982\u679c\u7ed3\u6784\u4e2d\u8fd8\u5305\u542b\u8f93\u5165\u7c7b\u7684DOM:<br>\u4f1a\u4ea7\u751f\u9519\u8befDOM\u66f4\u65b0==&gt;\u754c\u9762\u6709\u95ee\u9898\u3002<br>4\u3002\u5f00\u53d1\u4e2d\u5982\u4f55\u9009\u62e9key? :<br>1.\u6700\u597d\u4f7f\u7528\u6bcf\u6761\u6570\u636e\u7684\u552f\u4e00\u6807\u8bc6\u4f5c\u4e3akey\uff0c\u6bd4\u5982id\u3001\u624b\u673a\u53f7\u3001\u8eab\u4efd\u8bc1\u53f7\u3001\u5b66\u53f7\u7b49\u552f\u4e00\u503c\u3002<br>2.\u5982\u679c\u4e0d\u5b58\u5728\u5bf9\u6570\u636e\u7684\u9006\u5e8f\u6dfb\u52a0\u3001\u9006\u5e8f\u5220\u9664\u7b49\u7834\u574f\u987a\u5e8f\u64cd\u4f5c\uff0c\u4ec5\u7528\u4e8e\u6e32\u67d3\u5217\u8868\u7528\u4e8e\u5c55\u793a,<br>\u4f7f\u7528index\u4f5c\u4e3akey\u662f\u6ca1\u6709\u95ee\u9898\u7684\u3002<\/p>\n\n\n\n<p>\u5217\u8868\u8fc7\u6ee4<\/p>\n\n\n\n<p>\u5217\u8868\u6392\u5e8f<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Vue\u76d1\u6d4b\u6570\u636e\u7684\u539f\u7406<\/h2>\n\n\n\n<p>1.vue\u4f1a\u76d1\u89c6data\u4e2d\u6240\u6709\u5c42\u6b21\u7684\u6570\u636e\u3002<br>2\uff0e\u5982\u4f55\u76d1\u6d4b\u5bf9\u8c61\u4e2d\u7684\u6570\u636e?<br>    \u901a\u8fc7setter\u5b9e\u73b0\u76d1\u89c6\uff0c\u4e14\u8981\u5728new Vue\u65f6\u5c31\u4f20\u5165\u8981\u76d1\u6d4b\u7684\u6570\u636e\u3002<br>    (1).\u5bf9\u8c61\u4e2d\u540e\u8ffd\u52a0\u7684\u5c5e\u6027\uff0cVue\u9ed8\u8ba4\u4e0d\u505a\u54cd\u5e94\u5f0f\u5904\u7406<br>    (2).\u5982\u9700\u7ed9\u540e\u6dfb\u52a0\u7684\u5c5e\u6027\u505a\u54cd\u5e94\u5f0f\uff0c\u8bf7\u4f7f\u7528\u5982\u4e0bAPI:<br>        Vue.set(target.propertyName\/index,value)\u6216<br>        vm.$set(target.propertyName\/index\uff0cvalue)<br>3. \u5982\u4f55\u76d1\u6d4b\u6570\u7ec4\u4e2d\u7684\u6570\u636e?<br>    \u901a\u8fc7\u5305\u88f9\u6570\u7ec4\u66f4\u65b0\u5143\u7d20\u7684\u65b9\u6cd5\u5b9e\u73b0\uff0c\u672c\u8d28\u5c31\u662f\u505a\u4e86\u4e24\u4ef6\u4e8b\uff1a<br>    (1).\u8c03\u7528\u539f\u751f\u5bf9\u5e94\u7684\u65b9\u6cd5\u5bf9\u6570\u7ec4\u8fdb\u884c\u66f4\u65b0\u3002<br>    (2).\u91cd\u65b0\u89e3\u6790\u6a21\u677f\uff0c\u8fdb\u800c\u66f4\u65b0\u9875\u9762\u3002<br>4.\u5728Vue\u4fee\u6539\u6570\u7ec4\u4e2d\u7684\u67d0\u4e2a\u5143\u7d20\u4e00\u5b9a\u8981\u7528\u5982\u4e0b\u65b9\u6cd5:<br>    1.\u4f7f\u7528\u8fd9\u4e9bAPI\uff1apush()\u3001pop()\u3001shift()\u3001unshift()\u3001spllice()\u3001sort()\u3001reverse(\uff09<br>    2.Vue.set()\u6216vm.$set()<br>\u7279\u522b\u6ce8\u610f:Vue.set()\u548c vm.$set()\u4e0d\u80fd\u7ed9vm\u6216 vm\u7684\u6839\u6570\u636e\u5bf9\u8c61\u6dfb\u52a0\u5c5e\u6027!!!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6536\u96c6\u8868\u5355\u6570\u636e<\/h2>\n\n\n\n<p>\u82e5&lt;input type=&#8221;text&#8221;\/&gt; \uff0c\u5219v-model\u6536\u96c6\u7684\u662fvalue\u503c\uff0c\u7528\u6237\u8f93\u5165\u7684\u5c31\u662fvalue\u503c\u3002<br>\u82e5:&lt;input type=&#8221;radio&#8221;\/&gt;\uff0c\u5219v-model\u6536\u96c6\u7684\u662fvalue\u503c\uff0c\u4e14\u8981\u7ed9\u6807\u7b7e\u914d\u7f6evalue\u503c\u3002<br>\u82e5:&lt;input type=&#8221;checkbox&#8221;\/&gt;<br>1.\u6ca1\u6709\u914d\u7f6einput\u7684value\u5c5e\u6027\uff0c\u90a3\u4e48\u6536\u96c6\u7684\u5c31\u662fchecked(\u52fe\u9009or\u672a\u52fe\u9009\uff0c\u662f\u5e03\u5c14\u503c)<br>2.\u914d\u7f6einput\u7684value\u5c5e\u6027:<br>(1)v-model\u7684\u521d\u59cb\u503c\u662f\u975e\u6570\u7ec4\uff0c\u90a3\u4e48\u6536\u96c6\u7684\u5c31\u662fchecked(\u52fe\u9009 or\u672a\u52fe\u9009,\u662f\u5e03\u5c14\u503c)<br>(2)v-model\u7684\u521d\u59cb\u503c\u662f\u6570\u7ec4\uff0c\u90a3\u4e48\u6536\u96c6\u7684\u7684\u5c31\u662fvalue\u7ec4\u6210\u7684\u6570\u7ec4<br>\u5907\u6ce8: v-model\u7684\u4e09\u4e2a\u4fee\u9970\u7b26:<br>lazy:\u5931\u53bb\u7126\u70b9\u518d\u6536\u96c6\u6570\u636e<br>number:\u8f93\u5165\u5b57\u7b26\u4e32\u8f6c\u4e3a\u6709\u6548\u7684\u6570\u5b57<br>trim:\u8f93\u5165\u9996\u5c3e\u7a7a\u683c\u8fc7\u6ee4<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u8fc7\u6ee4\u5668<\/h2>\n\n\n\n<h2 class=\"wp-block-heading\">\u5185\u7f6e\u6307\u4ee4<\/h2>\n\n\n\n<p>v-bind :\u5355\u5411\u7ed1\u5b9a\u89e3\u6790\u8868\u8fbe\u5f0f,\u53ef\u7b80\u5199\u4e3a:xxx<br>v-model :\u53cc\u5411\u6570\u636e\u7ed1\u5b9a<br>v-for: \u904d\u5386\u6570\u7ec4\/\u5bf9\u8c61\/\u5b57\u7b26\u4e32<br>v-on :\u7ed1\u5b9a\u4e8b\u4ef6\u76d1\u542c,\u53ef\u7b80\u5199\u4e3a@<br>v-if: \u6761\u4ef6\u6e32\u67d3\uff08\u52a8\u6001\u63a7\u5236\u8282\u70b9\u662f\u5426\u5b58\u5b58\u5728)<br>v-else : \u6761\u4ef6\u6e32\u67d3\uff08(\u52a8\u6001\u63a7\u5236\u8282\u70b9\u662f\u5426\u5b58\u5b58\u5728)<br>v-show: \u6761\u4ef6\u6e32\u67d3\uff08\u52a8\u6001\u63a7\u5236\u8282\u70b9\u662f\u5426\u5c55\u793a)<\/p>\n\n\n\n<p>v-text\uff1a<br>    1.\u5411\u5176\u6240\u5728\u7684\u8282\u70b9\u4e2d\u6e32\u67d3\u6587\u672c\u5185\u5bb9\u3002\u5c06\u6240\u6709\u5b57\u7b26\u4e32\u5f53\u6210\u666e\u901a\u5b57\u7b26\uff0c\u4e0d\u89e3\u6790\u6807\u7b7e\u3002<br>    2.\u4e0e\u63d2\u503c\u8bed\u6cd5\u7684\u533a\u522b\uff1av-text\u4f1a\u66ff\u6362\u8282\u70b9\u4e2d\u7684\u5185\u5bb9\uff0c{{xx}}\u5219\u4e0d\u4f1a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-14.png\" alt=\"\" class=\"wp-image-2571\" width=\"296\" height=\"101\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-14.png 581w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-14-500x170.png 500w\" sizes=\"(max-width: 296px) 100vw, 296px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">v-html\u6307\u4ee4:<\/h3>\n\n\n\n<p>    1.\u4f5c\u7528\uff1a\u5411\u6307\u5b9a\u8282\u70b9\u4e2d\u6e32\u67d3\u5305\u542bhtml\u7ed3\u6784\u7684\u5185\u5bb9\u3002<br>    2.\u4e0e\u63d2\u503c\u8bed\u6cd5\u7684\u533a\u522b:<br>        (1).v-html\u4f1a\u66ff\u6362\u6389\u8282\u70b9\u4e2d\u6240\u6709\u7684\u5185\u5bb9\uff0c{{xx}}\u5219\u4e0d\u4f1a\u3002<br>        (2).v-html\u53ef\u4ee5\u8bc6\u522bhtml\u7ed3\u6784\u3002<br>    3.\u4e25\u91cd\u6ce8\u610f: v-html\u6709\u5b89\u5168\u6027\u95ee\u9898!!!!<br>        (1).\u5728\u7f51\u7ad9\u4e0a\u52a8\u6001\u6e32\u67d3\u4efb\u610fHTML\u662f\u975e\u5e38\u5371\u9669\u7684\uff0c\u5bb9\u6613\u5bfc\u81f4XSS\u653b\u51fb\u3002<br>        (2).\u4e00\u5b9a\u8981\u5728\u53ef\u4fe1\u7684\u5185\u5bb9\u4e0a\u4f7f\u7528v-html\uff0c\u6c38\u4e0d\u8981\u7528\u5728\u7528\u6237\u63d0\u4ea4\u7684\u5185\u5bb9\u4e0a!<\/p>\n\n\n\n<p>v-clock\u6307\u4ee4\uff1a<\/p>\n\n\n\n<p>v-once\u6307\u4ee4:<br>1.v-once\u6240\u5728\u8282\u70b9\u5728\u521d\u6b21\u52a8\u6001\u6e32\u67d3\u540e\uff0c\u5c31\u89c6\u4e3a\u9759\u6001\u5185\u5bb9\u4e86\u3002<br>2.\u4ee5\u540e\u6570\u636e\u7684\u6539\u53d8\u4e0d\u4f1a\u5f15\u8d77v-once\u6240\u5728\u7ed3\u6784\u7684\u66f4\u65b0\uff0c\u53ef\u4ee5\u7528\u4e8e\u4f18\u5316\u6027\u80fd\u3002<\/p>\n\n\n\n<p>v-pre\u6307\u4ee4:<br>1.\u8df3\u8fc7\u5176\u6240\u5728\u8282\u70b9\u7684\u7f16\u8bd1\u8fc7\u7a0b\u3002<br>2.\u53ef\u5229\u7528\u5b83\u8df3\u8fc7\uff1a\u6ca1\u6709\u4f7f\u7528\u6307\u4ee4\u8bed\u6cd5\u3001\u6ca1\u6709\u4f7f\u7528\u63d2\u503c\u8bed\u6cd5\u7684\u8282\u70b9\uff0c\u4f1a\u52a0\u5feb\u7f16\u8bd1\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u81ea\u5b9a\u4e49\u6307\u4ee4<\/h2>\n\n\n\n<p>\u9700\u6c421\uff1a\u5b9a\u4e49\u4e00\u4e2av-big\u6307\u4ee4\uff0c\u548cv-text\u529f\u80fd\u7c7b\u4f3c\uff0c\u4f46\u4f1a\u628a\u7ed1\u5b9a\u7684\u6570\u503c\u653e\u592710\u500d<br>\u9700\u6c422\uff1a\u5b9a\u4e49\u4e00\u4e2av-fbind\u6307\u4ee4\uff0c\u548cv-bind\u529f\u80fd\u7c7b\u4f3c\uff0c\u4f46\u53ef\u4ee5\u8ba9\u5176\u6240\u7ed1\u5b9a\u7684input\u5143\u7d20\u9ed8\u8ba4\u83b7\u53d6\u7126\u70b9\u3002<br>\u81ea\u5b9a\u4e49\u6307\u4ee4\u603b\u7ed3:<br>    \u4e00\u3001\u5b9a\u4e49\u8bed\u6cd5:<br>    (1).\u5c40\u90e8\u6307\u4ee4:<br>        new Vue({ directives:{\u6307\u4ee4\u540d:\u914d\u7f6e\u5bf9\u8c61} }\uff09; \u6216 new Vue({directives{\u6307\u4ee4\u540d:\u56de\u8c03\u51fd\u6570} }\uff09;<br>    (2).\u5168\u5c40\u6307\u4ee4:<br>        Vue.directive(\u6307\u4ee4\u540d,\u914d\u7f6e\u5bf9\u8c61) \u6216 Vue.directive (\u6307\u4ee4\u540d,\u56de\u8c03\u51fd\u6570)<br>\u4e8c\u3001\u914d\u7f6e\u5bf9\u8c61\u4e2d\u5e38\u7528\u76843\u4e2a\u56de\u8c03:<br>    (1).bind:\u6307\u4ee4\u4e0e\u5143\u7d20\u6210\u529f\u7ed1\u5b9a\u65f6\u8c03\u7528\u3002<br>    (2).inserted:\u6307\u4ee4\u6240\u5728\u5143\u7d20\u88ab\u63d2\u5165\u9875\u9762\u65f6\u8c03\u7528\u3002<br>    (3).update:\u6307\u4ee4\u6240\u5728\u6a21\u677f\u7ed3\u6784\u88ab\u91cd\u65b0\u89e3\u6790\u65f6\u8c03\u7528\u3002<br>\u4e09\u3001\u5907\u6ce8:<br>    1.\u6307\u4ee4\u5b9a\u4e49\u65f6\u4e0d\u52a0v-\uff0c\u4f46\u4f7f\u7528\u65f6\u8981\u52a0v-;<br>    2.\u6307\u4ee4\u540d\u5982\u679c\u662f\u591a\u4e2a\u5355\u8bcd\uff0c\u8981\u4f7f\u7528kebab-case\u547d\u540d\u65b9\u5f0f\uff0c\u4e0d\u8981\u7528camelCase\u547d\u540d\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7ec4\u4ef6<\/h2>\n\n\n\n<p>vue\u4e2d\u4f7f\u7528\u7ec4\u4ef6\u7684\u4e09\u5927\u6b65\u9aa4:<br>\u4e00\u3001\u5b9a\u4e49\u7ec4\u4ef6(\u521b\u5efa\u7ec4\u4ef6)<br>\u4e8c\u3001\u6ce8\u518c\u7ec4\u4ef6<br>\u4e09\u3001\u4f7f\u7528\u7ec4\u4ef6(\u5199\u7ec4\u4ef6\u6807\u7b7e)<\/p>\n\n\n\n<p>\u4e00\u3001\u5982\u4f55\u5b9a\u4e49\u4e00\u4e2a\u7ec4\u4ef6?<br>    \u4f7f\u7528Vue.extend(options)\u521b\u5efa\uff0c\u5176\u4e2doptions\u548cnew Vue(options)\u65f6\u4f20\u5165\u7684\u90a3\u4e2aoptions\u51e0\u4e4e\u4e00\u6837\uff0c<br>    \u4f46\u4e5f\u6709\u70b9\u533a\u522b\uff0c\u533a\u522b\u5982\u4e0b:<br>    1.el\u4e0d\u8981\u5199\uff0c\u4e3a\u4ec0\u4e48\uff1a\u6700\u7ec8\u6240\u6709\u7684\u7ec4\u4ef6\u90fd\u8981\u7ecf\u8fc7\u4e00\u4e2avm\u7684\u7ba1\u7406\uff0c\u7531vm\u4e2d\u7684el\u51b3\u5b9a\u670d\u52a1\u54ea\u4e2a\u5bb9\u5668\u3002<br>    2.data\u5fc5\u987b\u5199\u6210\u51fd\u6570\uff0c\u4e3a\u4ec0\u4e48\uff1a\u907f\u5154\u7ec4\u4ef6\u88ab\u590d\u7528\u65f6\uff0c\u6570\u636e\u5b58\u5728\u5f15\u7528\u5173\u7cfb\u3002<br>    \u5907\u6ce8\uff1a\u4f7f\u7528template\u53ef\u4ee5\u914d\u7f6e\u7ec4\u4ef6\u7ed3\u6784\u3002<br>\u4e8c\u3001\u5982\u4f55\u6ce8\u518c\u7ec4\u4ef6?<br>    1.\u5c40\u90e8\u6ce8\u518c\uff1a\u9760new Vue\u7684\u65f6\u5019\u4f20\u5165components\u9009\u9879<br>    2.\u5168\u5c40\u6ce8\u518c\uff1a\u9760Vue.component(&#8216;\u7ec4\u4ef6\u540d\u2019\uff0c\u7ec4\u4ef6)<br>\u4e09\u3001\u7f16\u5199\u7ec4\u4ef6\u6807\u7b7e:<br>&lt;school&gt;&lt;\/school&gt;<\/p>\n\n\n\n<p>\u51e0\u4e2a\u6ce8\u610f\u70b9:<br>1.\u5173\u4e8e\u7ec4\u4ef6\u540d:<br>    \u4e00\u4e2a\u5355\u8bcd\u7ec4\u6210:<br>        \u7b2c\u4e00\u79cd\u5199\u6cd5(\u9996\u5b57\u6bcd\u5c0f\u5199):school<br>        \u7b2c\u4e8c\u79cd\u5199\u6cd5(\u9996\u5b57\u6bcd\u5927\u5199):School<br>    \u591a\u4e2a\u5355\u8bcd\u7ec4\u6210:<br>        \u7b2c\u4e00\u79cd\u5199\u6cd5(kebab-case\u547d\u540d)\uff1amy-school<br>        \u7b2c\u4e8c\u79cd\u5199\u6cd5(CamelCase\u547d\u540d)\uff1aMySchool\uff08\u9700\u8981Vue\u811a\u624b\u67b6\u652f\u6301)<\/p>\n\n\n\n<p>\u5907\u6ce8:<br>    (1).\u7ec4\u4ef6\u540d\u5c3d\u53ef\u80fd\u56de\u907fHTML\u4e2d\u5df2\u6709\u7684\u5143\u7d20\u540d\u79f0\uff0c\u4f8b\u5982:h2\u3001H2\u90fd\u4e0d\u884c\u3002<br>    (2).\u53ef\u4ee5\u4f7f\u7528name\u914d\u7f6e\u9879\u6307\u5b9a\u7ec4\u4ef6\u5728\u5f00\u53d1\u8005\u5de5\u5177\u4e2d\u5448\u73b0\u7684\u540d\u5b57\u3002<br>2.\u5173\u4e8e\u7ec4\u4ef6\u6807\u7b7e:<br>    \u7b2c\u4e00\u79cd\u5199\u6cd5: &lt;school&gt;&lt;\/school&gt;<br>    \u7b2c\u4e8c\u79cd\u5199\u6cd5: &lt;school\/&gt;<br>    \u5907\u6ce8: \u4e0d\u7528\u4f7f\u7528\u811a\u624b\u67b6\u65f6\uff0c\u4f1a\u5bfc\u81f4\u540e\u7eed\u7ec4\u4ef6\u4e0d\u80fd\u6e32\u67d3\u3002<br>3.\u4e00\u4e2a\u7b80\u5199\u65b9\u5f0f:<br>    const school = Vue.extend(options\uff09\u53ef\u7b80\u5199\u4e3a: const school = options<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7ec4\u4ef6\u7684\u5d4c\u5957<\/h2>\n\n\n\n<p>\u5173\u4e8eVueComponent\uff1a<br>1.school\u7ec4\u4ef6\u672c\u8d28\u662f\u4e00\u4e2a\u540d\u4e3aVueComponent\u7684\u6784\u9020\u51fd\u6570\uff0c\u4e14\u4e0d\u662f\u7a0b\u5e8f\u5458\u5b9a\u4e49\u7684\uff0c\u662fVue.extend\u751f\u6210\u7684\u3002<br>2.\u6211\u4eec\u53ea\u9700\u8981\u5199&lt;school\/&gt;\u6216&lt;school&gt;&lt;\/school&gt;\uff0cVue\u89e3\u6790\u65f6\u4f1a\u5e2e\u6211\u4eec\u521b\u5efaschool\u7ec4\u4ef6\u7684\u5b9e\u4f8b\u5bf9\u8c61\uff0c\u5373Vue\u5e2e\u6211\u4eec\u6267\u884c\u7684 new VueComponent(options)\u3002<br>3.\u7279\u522b\u6ce8\u610f\uff1a\u6bcf\u6b21\u8c03\u7528Vue.extend\uff0c\u8fd4\u56de\u7684\u90fd\u662f\u4e00\u4e2a\u5168\u65b0\u7684VueComponent !!!!<br>4.\u5173\u4e8ethis\u6307\u5411:<br>    (1).\u7ec4\u4ef6\u914d\u7f6e\u4e2d: data\u51fd\u6570\u3001methods\u4e2d\u7684\u51fd\u6570\u3001watch\u4e2d\u7684\u51fd\u6570\u3001computed\u4e2d\u7684\u51fd\u6570\u5b83\u4eec\u7684this\u5747\u662f\u3010VueComponent\u5b9e\u4f8b\u5bf9\u8c61\u3011\u3002<br>    (2).new Vue()\u914d\u7f6e\u4e2d\uff1adata\u51fd\u6570\u3001methods\u4e2d\u7684\u51fd\u6570\u3001watch\u4e2d\u7684\u51fd\u6570\u3001computed\u4e2d\u7684\u51fd\u6570\u5b83\u4eec\u7684this\u5747\u662f\u3010Vue\u5b9e\u4f8b\u5bf9\u8c61\u3011\u3002<br>5.VueComponent\u7684\u5b9e\u4f8b\u5bf9\u8c61\uff0c\u4ee5\u540e\u7b80\u79f0vc\uff08\u4e5f\u53ef\u79f0\u4e4b\u4e3a\uff1a\u7ec4\u4ef6\u5b9e\u4f8b\u5bf9\u8c61\uff09\u3002<br>Vue\u7684\u5b9e\u4f8b\u5bf9\u8c61\uff0c\u4ee5\u540e\u7b80\u79f0vm\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-16.png\" alt=\"\" class=\"wp-image-2601\" width=\"652\" height=\"54\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-16.png 1216w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-16-1000x82.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-16-500x41.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-16-768x63.png 768w\" sizes=\"(max-width: 652px) 100vw, 652px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-17.png\" alt=\"\" class=\"wp-image-2604\" width=\"668\" height=\"413\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-17.png 1087w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-17-1000x620.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-17-500x310.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-17-768x476.png 768w\" sizes=\"(max-width: 668px) 100vw, 668px\" \/><\/figure>\n\n\n\n<p>\u5355\u6587\u4ef6\u7ec4\u4ef6<\/p>\n\n\n\n<p>\u4ee5.vue\u7ed3\u5c3e\u7684\u6587\u4ef6\u3002\u5b89\u88c5\u76f8\u5e94\u63d2\u4ef6\uff1avetur\uff0c\u4f5c\u8005Pine Wu<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">vue-cli\uff1acommand line interface \u547d\u4ee4\u884c\u63a5\u53e3\u5de5\u5177 \u811a\u624b\u67b6<\/h2>\n\n\n\n<p>Vue\u811a\u624b\u67b6\u662fVue\u5b98\u65b9\u63d0\u4f9b\u7684\u6807\u51c6\u5316\u5f00\u53d1\u5de5\u5177\uff08\u5f00\u53d1\u5e73\u53f0\uff09\u3002<br>\u7b2c\u4e00\u6b65\uff1a\u5168\u5c40\u5b89\u88c5@vue\/cli   npm install -g @vue\/cli<br>\u7b2c\u4e8c\u6b65\uff1a\u5207\u6362\u5230\u4f60\u8981\u521b\u5efa\u9879\u76ee\u7684\u76ee\u5f55\uff0c\u7136\u540e\u4f7f\u7528\u547d\u4ee4\u521b\u5efa\u9879\u76ee vue create xxxx<br>\u7b2c\u4e09\u6b65\uff1a\u542f\u52a8\u9879\u76ee npm run serve<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-18.png\" alt=\"\" class=\"wp-image-2614\" width=\"530\" height=\"319\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-18.png 1158w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-18-1000x603.png 1000w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-18-500x301.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-18-768x463.png 768w\" sizes=\"(max-width: 530px) 100vw, 530px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-19.png\" alt=\"\" class=\"wp-image-2624\" width=\"473\" height=\"349\" srcset=\"https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-19.png 950w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-19-500x369.png 500w, https:\/\/www.lcettsg.cn\/code\/wp-content\/uploads\/2023\/03\/image-19-768x568.png 768w\" sizes=\"(max-width: 473px) 100vw, 473px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u5173\u4e8e\u4e0d\u540c\u7248\u672c\u7684Vue:<\/h3>\n\n\n\n<p>1.vue.js \u4e0evue.runtime.xxx.js\u7684\u533a\u522b:<br>    (1).vue.js\u662f\u5b8c\u6574\u7248\u7684Vue\uff0c\u5305\u542b: \u6838\u5fc3\u529f\u80fd+\u6a21\u677f\u89e3\u6790\u5668\u3002<br>    (2).vue.runtime.xxx.js\u662f\u8fd0\u884c\u7248\u7684Vue\uff0c\u53ea\u5305\u542b\u6838\u5fc3\u529f\u80fd\uff0c\u6ca1\u6709\u6a21\u677f\u89e3\u6790\u5668\u3002<br>2.\u56e0\u4e3avue.runtime.xxx.js\u6ca1\u6709\u6a21\u677f\u89e3\u6790\u5668\uff0c\u6240\u4ee5\u4e0d\u80fd\u4f7f\u7528template\u914d\u7f6e\u9879\uff0c\u9700\u8981\u4f7f\u7528render\u51fd\u6570\u63a5\u6536\u5230\u7684createElement\u51fd\u6570\u53bb\u6307\u5b9a\u5177\u4f53\u5185\u5bb9\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u811a\u624b\u67b6\u9ed8\u8ba4\u914d\u7f6e\uff1a<\/h3>\n\n\n\n<p>vue inspect &gt; output.js  \/\/\u5bfc\u51fa\u914d\u7f6e\u4fe1\u606f\uff0c\u51711300\u591a\u884c \uff0c\u53ea\u7528\u4f5c\u663e\u793a<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ref\u5c5e\u6027<\/h2>\n\n\n\n<p>1.\u88ab\u7528\u6765\u7ed9\u5143\u7d20\u6216\u5b50\u7ec4\u4ef6\u6ce8\u518c\u5f15\u7528\u4fe1\u606f\uff08id\u7684\u66ff\u4ee3\u8005)<br>2.\u5e94\u7528\u5728html\u6807\u7b7e\u4e0a\u83b7\u53d6\u7684\u662f\u771f\u5b9eDOM\u5143\u7d20\uff0c\u5e94\u7528\u5728\u7ec4\u4ef6\u6807\u7b7e\u4e0a\u662f\u7ec4\u4ef6\u5b9e\u4f8b\u5bf9\u8c61\uff08vc)<br>3.\u4f7f\u7528\u65b9\u5f0f\uff1a<br>    \u6253\u6807\u8bc6\uff1a&lt;h1 ref=&#8221;xxx&#8217;&gt;&#8230;&#8230;&lt;\/h1&gt;\u6216 &lt;School ref=&#8221;xxx&#8221;&gt; &lt;\/School&gt;<br>    \u83b7\u53d6:  this.$refs.xxx<\/p>\n\n\n\n<h2 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