{"id":272735,"date":"2024-05-16T13:22:51","date_gmt":"2024-05-16T05:22:51","guid":{"rendered":""},"modified":"2024-05-16T13:23:05","modified_gmt":"2024-05-16T05:23:05","slug":"vue3-%e9%a1%b9%e7%9b%ae%e4%b8%ad%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-extends-%e6%89%a9%e5%b1%95%e9%80%89%e9%a1%b9","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/272735.html","title":{"rendered":"Vue3 \u9879\u76ee\u4e2d\u5982\u4f55\u4f7f\u7528 Extends \u6269\u5c55\u9009\u9879"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/24194935\/c447cfe7-3295-45a9-84f5-51030b5d98f3.webp\" alt=\"Vue3 \u9879\u76ee\u4e2d\u5982\u4f55\u4f7f\u7528 Extends \u6269\u5c55\u9009\u9879\" \/><\/p>\n<p><p>\u5728Vue3\u9879\u76ee\u4e2d\u4f7f\u7528Extends\u6269\u5c55\u9009\u9879\u53ef\u4ee5\u6709\u6548\u5730\u5728\u7ec4\u4ef6\u4e4b\u95f4\u5171\u4eab\u6216\u91cd\u7528\u4ee3\u7801\uff0c\u63d0\u9ad8\u5f00\u53d1\u6548\u7387\u3001\u786e\u4fdd\u4ee3\u7801\u7684\u4e00\u81f4\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<strong>\u6838\u5fc3\u89c2\u70b9\u5305\u62ec\uff1a\u4ee3\u7801\u91cd\u7528\u548c\u63d0\u9ad8\u9879\u76ee\u53ef\u7ef4\u62a4\u6027\u3001\u7b80\u5316\u7ec4\u4ef6\u4ee3\u7801\u3001\u4fdd\u6301\u4ee3\u7801\u4e00\u81f4\u6027<\/strong>\u3002\u5c06\u5176\u4e2d\u7684\u201c\u4ee3\u7801\u91cd\u7528\u548c\u63d0\u9ad8\u9879\u76ee\u53ef\u7ef4\u62a4\u6027\u201d\u8fdb\u884c\u8be6\u7ec6\u63cf\u8ff0\uff1a\u901a\u8fc7Extends\u9009\u9879\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u5b9a\u4e49\u4e00\u4e2a\u6216\u591a\u4e2a\u53ef\u590d\u7528\u7684\u5bf9\u8c61\uff0c\u8fd9\u4e9b\u5bf9\u8c61\u53ef\u4ee5\u5305\u542b\u4efb\u4f55\u7ec4\u4ef6\u9009\u9879\uff08\u5982data\u3001methods\u3001computed\u7b49\uff09\u3002\u7ec4\u4ef6\u901a\u8fc7Extends\u9009\u9879\u5f15\u7528\u8fd9\u4e9b\u5bf9\u8c61\uff0c\u4fbf\u53ef\u7ee7\u627f\u5e76\u4f7f\u7528\u5b83\u4eec\u5b9a\u4e49\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u4ec5\u51cf\u5c11\u4e86\u4ee3\u7801\u7684\u5197\u4f59\uff0c\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u590d\u7528\u7387\uff0c\u4e5f\u8ba9\u7ec4\u4ef6\u7ed3\u6784\u66f4\u52a0\u6e05\u6670\uff0c\u4fbf\u4e8e\u540e\u671f\u7684\u7ef4\u62a4\u548c\u4ee3\u7801\u7684\u6269\u5c55\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001EXTENDS \u9009\u9879\u7b80\u4ecb<\/h3>\n<\/p>\n<p><p>Vue\u7684Extends\u9009\u9879\u5141\u8bb8\u7ec4\u4ef6\u7ee7\u627f\u53e6\u4e00\u4e2a\u7ec4\u4ef6\u6216\u5bf9\u8c61\u7684\u529f\u80fd\u3002\u8fd9\u662f\u4e00\u79cd\u5728Vue\u9879\u76ee\u4e2d\u5b9e\u73b0\u4ee3\u7801\u91cd\u7528\u548c\u7ee7\u627f\u903b\u8f91\u7684\u6709\u6548\u65b9\u6cd5\u3002Extends\u53ef\u4ee5\u662f\u4e00\u4e2a\u5bf9\u8c61\u6216\u8005\u4e00\u4e2a\u6784\u9020\u5668\u8fd4\u56de\u7684\u5bf9\u8c61\uff0c\u5b83\u5305\u542b\u53ef\u590d\u7528\u7ec4\u4ef6\u9009\u9879\uff0c\u5982methods\u3001data\u3001computed\u3001components\u7b49\u3002<\/p>\n<\/p>\n<p><p>\u5728Vue3\u4e2d\u4f7f\u7528Extends\u65f6\uff0c\u5b83\u4e3b\u8981\u7528\u4e8e\u7ee7\u627f\u548c\u6df7\u5408\u6838\u5fc3\u529f\u80fd\u5230\u7ec4\u4ef6\u4e2d\u3002\u8fd9\u8ba9\u5f00\u53d1\u8005\u53ef\u4ee5\u62bd\u8c61\u548c\u5c01\u88c5\u5171\u901a\u529f\u80fd\uff0c\u7136\u540e\u5728\u591a\u4e2a\u7ec4\u4ef6\u95f4\u5171\u4eab\u8fd9\u4e9b\u529f\u80fd\uff0c\u4ece\u800c\u51cf\u5c11\u4ee3\u7801\u91cd\u590d\u548c\u589e\u52a0\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<\/p>\n<p><h3>\u4e8c\u3001\u5982\u4f55\u5728Vue3\u4e2d\u4f7f\u7528Extends<\/h3>\n<\/p>\n<p><p>\u4f7f\u7528Extends\u7684\u7b2c\u4e00\u6b65\u662f\u5b9a\u4e49\u4e00\u4e2a\u5305\u542b\u4f60\u60f3\u8981\u590d\u7528\u529f\u80fd\u7684\u5bf9\u8c61\u3002\u8fd9\u4e2a\u5bf9\u8c61\u53ef\u4ee5\u5305\u542bVue\u7ec4\u4ef6\u7684\u4efb\u4f55\u9009\u9879\uff0c\u4f8b\u5982data\u3001methods\u3001computed\u7b49\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-javascript\">const reusableOptions = {<\/p>\n<p>  data() {<\/p>\n<p>    return {<\/p>\n<p>      isShowing: false<\/p>\n<p>    }<\/p>\n<p>  },<\/p>\n<p>  methods: {<\/p>\n<p>    toggleShow() {<\/p>\n<p>      this.isShowing = !this.isShowing;<\/p>\n<p>    }<\/p>\n<p>  }<\/p>\n<p>};<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u4e2a\u7b80\u5355\u7684\u5bf9\u8c61\u5b9a\u4e49\u4e86\u4e00\u4e2a\u6570\u636e\u5c5e\u6027\u548c\u4e00\u4e2a\u5207\u6362\u8be5\u5c5e\u6027\u7684\u65b9\u6cd5\u3002\u63a5\u4e0b\u6765\uff0c\u5728\u7ec4\u4ef6\u4e2d\u4f7f\u7528Extends\u6765\u7ee7\u627f\u8fd9\u4e9b\u529f\u80fd\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-javascript\">import { defineComponent } from &#039;vue&#039;;<\/p>\n<p>export default defineComponent({<\/p>\n<p>  extends: reusableOptions,<\/p>\n<p>  \/\/ \u7ec4\u4ef6\u81ea\u5df1\u7684\u9009\u9879<\/p>\n<p>  data() {<\/p>\n<p>    return {<\/p>\n<p>      componentName: &#039;VueComponent&#039;<\/p>\n<p>    }<\/p>\n<p>  }<\/p>\n<p>});<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u7ec4\u4ef6\u4e2d\uff0c\u901a\u8fc7extends\u9009\u9879\u7ee7\u627f\u4e86<code>reusableOptions<\/code>\u5bf9\u8c61\u5b9a\u4e49\u7684\u529f\u80fd\u3002\u8fd9\u610f\u5473\u7740\u8be5\u7ec4\u4ef6\u73b0\u5728\u62e5\u6709<code>isShowing<\/code>\u6570\u636e\u5c5e\u6027\u548c<code>toggleShow<\/code>\u65b9\u6cd5\uff0c\u540c\u65f6\u8fd8\u53ef\u4ee5\u5b9a\u4e49\u5176\u81ea\u8eab\u7684\u9009\u9879\u3002<\/p>\n<\/p>\n<p><h3>\u4e09\u3001Extends\u4e0eMixins\u7684\u6bd4\u8f83<\/h3>\n<\/p>\n<p><p>\u867d\u7136Extends\u548cMixins\u5728Vue\u4e2d\u90fd\u53ef\u4ee5\u7528\u6765\u91cd\u7528\u4ee3\u7801\uff0c\u4f46\u5b83\u4eec\u5728\u5e94\u7528\u573a\u666f\u548c\u4f7f\u7528\u65b9\u5f0f\u4e0a\u6709\u6240\u4e0d\u540c\u3002<strong>Extends\u901a\u5e38\u7528\u4e8e\u7ee7\u627f\u5355\u4e00\u6e90\u5bf9\u8c61<\/strong>\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u800c<strong>Mixins\u9002\u7528\u4e8e\u5c06\u591a\u4e2a\u5bf9\u8c61\u7684\u529f\u80fd\u6df7\u5165\u5230\u4e00\u4e2a\u7ec4\u4ef6\u4e2d<\/strong>\u3002<\/p>\n<\/p>\n<p><p>\u4f7f\u7528Extends\u65f6\uff0c\u5982\u679c\u5b58\u5728\u76f8\u540c\u7684\u94a9\u5b50\u51fd\u6570\u6216\u5c5e\u6027\uff0c\u7ec4\u4ef6\u81ea\u8eab\u7684\u9009\u9879\u5c06\u4f1a\u8986\u76d6Extend\u5bf9\u8c61\u4e2d\u7684\u9009\u9879\u3002\u800c\u5728Mixins\u4e2d\uff0c\u76f8\u540c\u540d\u79f0\u7684\u94a9\u5b50\u51fd\u6570\u4f1a\u88ab\u5408\u5e76\uff0c\u4e14mixins\u6570\u7ec4\u4e2d\u7684\u94a9\u5b50\u51fd\u6570\u4f1a\u5728\u7ec4\u4ef6\u81ea\u8eab\u94a9\u5b50\u4e4b\u524d\u8c03\u7528\u3002<\/p>\n<\/p>\n<p><h3>\u56db\u3001\u5728\u5927\u578b\u9879\u76ee\u4e2d\u4f7f\u7528Extends<\/h3>\n<\/p>\n<p><p>\u5728\u5f00\u53d1\u5927\u578bVue\u5e94\u7528\u65f6\uff0cExtends\u9009\u9879\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7b80\u6d01\u6709\u6548\u7684\u65b9\u5f0f\u6765\u6784\u5efa\u9ad8\u5ea6\u590d\u7528\u7684\u7ec4\u4ef6\u6216\u529f\u80fd\u3002\u901a\u8fc7\u5c06\u516c\u5171\u903b\u8f91\u62bd\u79bb\u6210\u53ef\u590d\u7528\u7684\u5bf9\u8c61\uff0c\u4e0d\u4ec5\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u590d\u7528\u6027\uff0c\u4e5f\u964d\u4f4e\u4e86\u540e\u671f\u7ef4\u62a4\u7684\u590d\u6742\u5ea6\u3002<\/p>\n<\/p>\n<p><p>\u4f8b\u5982\uff0c\u4f60\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u5e38\u7528\u65b9\u6cd5\u548c\u6570\u636e\u5c5e\u6027\u7684\u57fa\u7840\u7ec4\u4ef6\u9009\u9879\u5bf9\u8c61\uff0c\u7136\u540e\u5728\u5e94\u7528\u4e2d\u7684\u591a\u4e2a\u7ec4\u4ef6\u91cc\u901a\u8fc7Extends\u6765\u7ee7\u627f\u5b83\u3002\u8fd9\u6837\u65e2\u4fdd\u6301\u4e86\u7ec4\u4ef6\u95f4\u7684\u4e00\u81f4\u6027\uff0c\u53c8\u51cf\u5c11\u4e86\u4ee3\u7801\u7684\u91cd\u590d\u7f16\u5199\u3002<\/p>\n<\/p>\n<p><h3>\u4e94\u3001\u603b\u7ed3<\/h3>\n<\/p>\n<p><p>\u5728Vue3\u9879\u76ee\u4e2d\u4f7f\u7528Extends\u6269\u5c55\u9009\u9879\u662f\u4e00\u79cd\u9ad8\u6548\u7ba1\u7406\u548c\u590d\u7528\u4ee3\u7801\u7684\u7b56\u7565\u3002\u5b83\u4e0d\u4ec5\u6709\u52a9\u4e8e\u7b80\u5316\u7ec4\u4ef6\u4ee3\u7801\u3001\u63d0\u9ad8\u9879\u76ee\u7684\u53ef\u7ef4\u62a4\u6027\uff0c\u8fd8\u4fdd\u8bc1\u4e86\u4ee3\u7801\u7684\u4e00\u81f4\u6027\u3002\u901a\u8fc7\u5408\u7406\u8fd0\u7528Extends\u4ee5\u53ca\u4e0eMixins\u7684\u5de7\u5999\u7ed3\u5408\uff0c\u53ef\u4ee5\u5728Vue\u9879\u76ee\u7684\u5f00\u53d1\u8fc7\u7a0b\u4e2dachieve significantly improved code reusability and m<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>ntainability\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p><strong>Q: \u5728Vue3\u9879\u76ee\u4e2d\uff0c\u5982\u4f55\u4f7f\u7528Extends\u6269\u5c55\u9009\u9879\uff1f<\/strong><\/p>\n<p>A: Extends\u6269\u5c55\u9009\u9879\u662fVue3\u4e2d\u7684\u4e00\u4e2a\u5f88\u6709\u7528\u7684\u7279\u6027\uff0c\u5b83\u5141\u8bb8\u6211\u4eec\u5728\u7ec4\u4ef6\u4e2d\u91cd\u7528\u5176\u4ed6\u7ec4\u4ef6\u7684\u9009\u9879\u3002\u5177\u4f53\u4f7f\u7528\u65b9\u6cd5\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u9996\u5148\uff0c\u4f60\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u5f85\u6269\u5c55\u9009\u9879\u7684\u7ec4\u4ef6\uff0c\u53ef\u4ee5\u662f\u5176\u4ed6\u5df2\u7ecf\u5b9a\u4e49\u7684\u7ec4\u4ef6\u6216\u8005\u662fVue\u5b9e\u4f8b\u3002<\/li>\n<li>\u7136\u540e\uff0c\u5728\u4f60\u9700\u8981\u6269\u5c55\u7684\u7ec4\u4ef6\u4e2d\uff0c\u4f7f\u7528<code>extends<\/code>\u9009\u9879\u6765\u5f15\u7528\u8fd9\u4e2a\u8981\u6269\u5c55\u7684\u7ec4\u4ef6\u3002<\/li>\n<li>\u5728\u6269\u5c55\u7684\u7ec4\u4ef6\u4e2d\uff0c\u4f60\u53ef\u4ee5\u6dfb\u52a0\u3001\u4fee\u6539\u6216\u8005\u8986\u76d6\u539f\u6709\u7ec4\u4ef6\u7684\u9009\u9879\u3002<\/li>\n<\/ol>\n<p><strong>Q: Vue3\u4e2d\u7684Extends\u6269\u5c55\u9009\u9879\u6709\u4ec0\u4e48\u4f5c\u7528\uff1f<\/strong><\/p>\n<p>A: Extends\u6269\u5c55\u9009\u9879\u5728Vue3\u4e2d\u662f\u4e00\u4e2a\u5f88\u6709\u7528\u7684\u7279\u6027\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5feb\u901f\u5730\u6269\u5c55\u7ec4\u4ef6\u7684\u9009\u9879\u3002\u901a\u8fc7\u4f7f\u7528Extends\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u4e00\u4e9b\u901a\u7528\u7684\u9009\u9879\uff0c\u5982\u6570\u636e\u3001\u8ba1\u7b97\u5c5e\u6027\u3001\u65b9\u6cd5\u7b49\uff0c\u5c01\u88c5\u5728\u4e00\u4e2a\u7ec4\u4ef6\u4e2d\uff0c\u5e76\u5728\u5176\u4ed6\u7ec4\u4ef6\u4e2d\u91cd\u7528\u5b83\u4eec\uff0c\u907f\u514d\u4e86\u91cd\u590d\u7f16\u5199\u76f8\u4f3c\u7684\u4ee3\u7801\u3002\u8fd9\u6837\uff0c\u6211\u4eec\u53ef\u4ee5\u63d0\u9ad8\u7ec4\u4ef6\u7684\u590d\u7528\u6027\u548c\u5f00\u53d1\u6548\u7387\u3002<\/p>\n<p><strong>Q: \u5728Vue3\u9879\u76ee\u4e2d\u4f7f\u7528Extends\u6269\u5c55\u9009\u9879\u65f6\u9700\u8981\u6ce8\u610f\u4ec0\u4e48\uff1f<\/strong><\/p>\n<p>A: \u5728\u4f7f\u7528Vue3\u7684Extends\u6269\u5c55\u9009\u9879\u65f6\uff0c\u6709\u51e0\u70b9\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ol>\n<li>\u6269\u5c55\u9009\u9879\u53ea\u80fd\u88ab\u5bf9\u8c61\u9009\u9879\u7ee7\u627f\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u53ea\u80fd\u5728 <code>components<\/code>\u3001<code>mixins<\/code>\u3001<code>directives<\/code>\u3001<code>filters<\/code> \u8fd9\u7c7b\u53ef\u63a5\u53d7\u5bf9\u8c61\u7684\u9009\u9879\u4e2d\u4f7f\u7528Extends\u3002<\/li>\n<li>\u5f53\u591a\u4e2a\u9009\u9879\u6269\u5c55\u540c\u4e00\u4e2a\u7ec4\u4ef6\u65f6\uff0c\u5982\u679c\u5b58\u5728\u547d\u540d\u51b2\u7a81\uff0c\u6269\u5c55\u7684\u9009\u9879\u4f1a\u8986\u76d6\u539f\u6709\u7684\u9009\u9879\u3002\u4e3a\u4e86\u907f\u514d\u547d\u540d\u51b2\u7a81\uff0c\u53ef\u4ee5\u4f7f\u7528\u5bf9\u8c61\u5c55\u5f00\u8fd0\u7b97\u7b26<code>...<\/code>\u6765\u5408\u5e76\u9009\u9879\u3002<\/li>\n<li>\u6ce8\u610fExtends\u53ea\u80fd\u6269\u5c55\u76f4\u63a5\u7684\u9009\u9879\uff0c\u5bf9\u4e8e\u5d4c\u5957\u5728\u5b50\u7ec4\u4ef6\u4e2d\u7684\u9009\u9879\u65e0\u6548\u3002\u5982\u679c\u9700\u8981\u6269\u5c55\u5d4c\u5957\u7ec4\u4ef6\u7684\u9009\u9879\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528mixins\u3002<\/li>\n<\/ol>\n<p>\u603b\u4e4b\uff0cExtends\u6269\u5c55\u9009\u9879\u662f\u4e00\u4e2a\u5f3a\u5927\u800c\u7075\u6d3b\u7684\u5de5\u5177\uff0c\u5728Vue3\u9879\u76ee\u4e2d\u4f7f\u7528\u5b83\u80fd\u591f\u63d0\u9ad8\u4ee3\u7801\u7684\u590d\u7528\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Vue3\u9879\u76ee\u4e2d\u4f7f\u7528Extends\u6269\u5c55\u9009\u9879\u53ef\u4ee5\u6709\u6548\u5730\u5728\u7ec4\u4ef6\u4e4b\u95f4\u5171\u4eab\u6216\u91cd\u7528\u4ee3\u7801\uff0c\u63d0\u9ad8\u5f00\u53d1\u6548\u7387\u3001\u786e\u4fdd\u4ee3\u7801\u7684\u4e00\u81f4\u6027\u548c [&hellip;]","protected":false},"author":3,"featured_media":272752,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/272735"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=272735"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/272735\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/272752"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=272735"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=272735"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=272735"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}