{"id":88512,"date":"2024-04-07T17:32:13","date_gmt":"2024-04-07T09:32:13","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/88512.html"},"modified":"2024-04-07T17:32:14","modified_gmt":"2024-04-07T09:32:14","slug":"vue%e7%bb%84%e4%bb%b6%e9%97%b4%e9%80%9a%e4%bf%a1%e7%9a%84%e6%96%b9%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/88512.html","title":{"rendered":"Vue\u7ec4\u4ef6\u95f4\u901a\u4fe1\u7684\u65b9\u5f0f"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/02172725\/663b9a03-e4a9-4d7a-a0c5-626fee3d3362.webp\" alt=\"Vue\u7ec4\u4ef6\u95f4\u901a\u4fe1\u7684\u65b9\u5f0f\" \/><\/p>\n<p><p><strong>Vue\u7ec4\u4ef6\u95f4\u7684\u4e3b\u8981\u901a\u4fe1\u65b9\u5f0f\u5305\u62ec\uff1a\u7236\u5b50\u7ec4\u4ef6\u4e4b\u95f4\u7684Props\u548cEvents\u3001\u4f7f\u7528Event Bus\u8fdb\u884c\u975e\u7236\u5b50\u7ec4\u4ef6\u4e4b\u95f4\u7684\u901a\u4fe1\u3001\u901a\u8fc7Vuex\u8fdb\u884c\u72b6\u6001\u7ba1\u7406\u3001\u4ee5\u53ca\u4f7f\u7528Provide\u548cInject\u3002<\/strong> \u5176\u4e2d\uff0cProps\u548cEvents\u662f\u57fa\u4e8e\u7236\u5b50\u5173\u7cfb\u7684\u7ec4\u4ef6\u4e4b\u95f4\u901a\u884c\u4fe1\u53f7\u7684\u4e00\u79cd\u6a21\u5f0f\uff0c\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u7b80\u5355\u7684\u573a\u666f\u3002\u5b50\u7ec4\u4ef6\u901a\u8fc7Props\u63a5\u6536\u6765\u81ea\u7236\u7ec4\u4ef6\u7684\u6570\u636e\uff0c\u5f53\u9700\u8981\u5411\u7236\u7ec4\u4ef6\u53d1\u9001\u4fe1\u606f\u65f6\uff0c\u4f1a\u89e6\u53d1\u4e00\u4e2a\u4e8b\u4ef6\u5e76\u5c06\u5176\u53d1\u9001\u7ed9\u7236\u7ec4\u4ef6\uff0c\u7236\u7ec4\u4ef6\u901a\u8fc7\u76d1\u542c\u8fd9\u4e2a\u4e8b\u4ef6\u6765\u54cd\u5e94\u5b50\u7ec4\u4ef6\u7684\u52a8\u4f5c\u3002\u8fd9\u79cd\u65b9\u5f0f\u7b80\u5355\u76f4\u89c2\uff0c\u6613\u4e8e\u7406\u89e3\u548c\u5b9e\u8df5\uff0c\u56e0\u800c\u5f88\u53d7\u6b22\u8fce\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001PROPS AND EVENTS<\/h3>\n<\/p>\n<p><p><strong>\u5b50\u7ec4\u4ef6\u901a\u8fc7Props\u63a5\u6536\u6570\u636e\uff0c\u7236\u7ec4\u4ef6\u901a\u8fc7\u76d1\u542c\u5b50\u7ec4\u4ef6\u53d1\u51fa\u7684Events\u8fdb\u884c\u54cd\u5e94\uff0c\u662fVue\u4e2d\u6700\u5e38\u7528\u7684\u901a\u4fe1\u65b9\u5f0f\u3002<\/strong><\/p>\n<\/p>\n<ul>\n<li>\n<p>Props<\/p>\n<p>\u5b50\u7ec4\u4ef6\u901a\u8fc7Props\u5c5e\u6027\u63a5\u6536\u6765\u81ea\u7236\u7ec4\u4ef6\u7684\u6570\u636e\u3002\u7236\u7ec4\u4ef6\u5728\u4f7f\u7528\u5b50\u7ec4\u4ef6\u6807\u7b7e\u65f6\uff0c\u901a\u8fc7\u7ed1\u5b9a\u5c5e\u6027\u4f20\u9012\u6570\u636e\u3002\u5b50\u7ec4\u4ef6\u9700\u8981\u5728\u5176\u7ec4\u4ef6\u7684<code>props<\/code>\u9009\u9879\u4e2d\u58f0\u660e\u63a5\u6536\u7684\u5c5e\u6027\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p>Events<\/p>\n<p>\u5f53\u5b50\u7ec4\u4ef6\u9700\u8981\u5c06\u6570\u636e\u4f20\u9012\u56de\u7236\u7ec4\u4ef6\u65f6\uff0c\u4f1a\u4f7f\u7528<code>$emit<\/code>\u65b9\u6cd5\u53d1\u51fa\u4e00\u4e2a\u81ea\u5b9a\u4e49\u4e8b\u4ef6\u3002\u7236\u7ec4\u4ef6\u901a\u8fc7\u5728\u4f7f\u7528\u5b50\u7ec4\u4ef6\u7684\u5730\u65b9\u76d1\u542c\u8fd9\u4e2a\u4e8b\u4ef6\u6765\u63a5\u6536\u6570\u636e\u3002<\/p>\n<\/p>\n<\/li>\n<\/ul>\n<p><h3>\u4e8c\u3001EVENT BUS<\/h3>\n<\/p>\n<p><p><strong>Event Bus\uff08\u4e8b\u4ef6\u603b\u7ebf\uff09\u662f\u4e00\u79cd\u5b9e\u73b0\u4efb\u610f\u7ec4\u4ef6\u95f4\u901a\u4fe1\u7684\u65b9\u5f0f\uff0c\u53ef\u4ee5\u8de8\u8d8a\u7236\u5b50\u7ec4\u4ef6\u7684\u8fb9\u754c\u3002<\/strong><\/p>\n<\/p>\n<ul>\n<li>\n<p>\u5b9e\u73b0Event Bus<\/p>\n<p>\u521b\u5efa\u4e00\u4e2a\u65b0\u7684Vue\u5b9e\u4f8b\u4f5c\u4e3a\u4e2d\u592e\u4e8b\u4ef6\u603b\u7ebf\uff0c\u901a\u8fc7\u5b83\u6765\u4f20\u9012\u4e8b\u4ef6\u548c\u6570\u636e\u3002\u7ec4\u4ef6\u901a\u8fc7\u8c03\u7528<code>$emit<\/code>\u65b9\u6cd5\u53d1\u51fa\u4e8b\u4ef6\uff0c\u5176\u4ed6\u7ec4\u4ef6\u901a\u8fc7<code>$on<\/code>\u65b9\u6cd5\u76d1\u542c\u8fd9\u4e9b\u4e8b\u4ef6\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528\u6ce8\u610f<\/p>\n<p>Event Bus\u5728\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u9700\u8981\u6ce8\u610f\u4e8b\u4ef6\u7684\u6ce8\u9500\u95ee\u9898\uff0c\u9632\u6b62\u5185\u5b58\u6cc4\u9732\u3002\u5728\u7ec4\u4ef6\u9500\u6bc1\u524d\uff0c\u5e94\u5f53\u79fb\u9664\u5176\u76d1\u542c\u7684\u4e8b\u4ef6\u3002<\/p>\n<\/p>\n<\/li>\n<\/ul>\n<p><h3>\u4e09\u3001VUEX<\/h3>\n<\/p>\n<p><p><strong>Vuex\u662f\u4e00\u79cd\u4e13\u4e3aVue\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\u7684\u72b6\u6001\u7ba1\u7406\u6a21\u5f0f\uff0c\u7528\u4e8e\u96c6\u4e2d\u7ba1\u7406\u7ec4\u4ef6\u7684\u5171\u4eab\u72b6\u6001\u3002<\/strong><\/p>\n<\/p>\n<ul>\n<li>\n<p>Vuex\u6982\u5ff5<\/p>\n<p>Vuex\u4e2d\u7684\u6838\u5fc3\u6982\u5ff5\u5305\u62ecstate\u3001getters\u3001mutations\u3001actions\u548cmodules\u3002\u7ec4\u4ef6\u901a\u8fc7<code>$store.state<\/code>\u8bbf\u95ee\u72b6\u6001\uff0c\u901a\u8fc7<code>$store.commit<\/code>\u63d0\u4ea4mutations\u6539\u53d8\u72b6\u6001\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p>\u6a21\u5757\u5316\u4e0e\u547d\u540d\u7a7a\u95f4<\/p>\n<p>Vuex\u5141\u8bb8\u5c06store\u5206\u5272\u6210\u6a21\u5757\uff08modules\uff09\uff0c\u6bcf\u4e2a\u6a21\u5757\u6709\u81ea\u5df1\u7684state\u3001mutations\u3001actions\u3001getters\uff0c\u751a\u81f3\u662f\u5d4c\u5957\u5b50\u6a21\u5757\u3002\u6a21\u5757\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e<code>namespaced: true<\/code>\u6765\u4f7f\u7528\u547d\u540d\u7a7a\u95f4\u3002<\/p>\n<\/p>\n<\/li>\n<\/ul>\n<p><h3>\u56db\u3001PROVIDE AND INJECT<\/h3>\n<\/p>\n<p><p><strong>Provide\u548cInject\u662fVue2.2.0\u65b0\u589e\u7684\u4e00\u4e2a\u7ec4\u4ef6\u901a\u4fe1\u7684API\uff0c\u9002\u7528\u4e8e\u6df1\u5c42\u6b21\u7684\u7ec4\u4ef6\u6811\u4f20\u9012\u6570\u636e\u3002<\/strong><\/p>\n<\/p>\n<ul>\n<li>\n<p>\u4f7f\u7528Provide\u548cInject<\/p>\n<p>\u7956\u5148\u7ec4\u4ef6\u6709\u4e00\u4e2a<code>provide<\/code>\u9009\u9879\u6765\u63d0\u4f9b\u6570\u636e\uff0c\u800c\u5728\u5176\u540e\u4ee3\u7ec4\u4ef6\u4e2d\u53ef\u4ee5\u4f7f\u7528<code>inject<\/code>\u9009\u9879\u6765\u5f00\u59cb\u4f7f\u7528\u8fd9\u4e9b\u6570\u636e\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p>\u7279\u70b9<\/p>\n<p>\u8fd9\u79cd\u65b9\u5f0f\u53ef\u4ee5\u8ba9\u591a\u5c42\u5d4c\u5957\u7684\u7ec4\u4ef6\u95f4\u8fdb\u884c\u901a\u4fe1\uff0c\u800c\u4e0d\u5fc5\u4e00\u5c42\u5c42\u901a\u8fc7Props\u8fdb\u884c\u4f20\u9012\u3002<\/p>\n<\/p>\n<\/li>\n<\/ul>\n<p><h3>\u4e94\u3001REFS AND PARENT\/CHILD COMPONENTS<\/h3>\n<\/p>\n<ul>\n<li>\n<p>\u901a\u8fc7<code>$refs<\/code>\u8bbf\u95ee\u7ec4\u4ef6\u5b9e\u4f8b<\/p>\n<p>\u53ef\u4ee5\u7ed9\u5b50\u7ec4\u4ef6\u6dfb\u52a0\u4e00\u4e2aref\u5c5e\u6027\uff0c\u7136\u540e\u901a\u8fc7<code>this.$refs.refName<\/code>\u8bbf\u95ee\u5230\u8be5\u7ec4\u4ef6\u5b9e\u4f8b\uff0c\u8fdb\u884c\u6570\u636e\u4ea4\u4e92\u6216\u8c03\u7528\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p>\u8bbf\u95ee\u7236\u7ec4\u4ef6\u548c\u5b50\u7ec4\u4ef6<\/p>\n<p>\u7ec4\u4ef6\u5b9e\u4f8b\u5305\u542b<code>$parent<\/code>\u548c<code>$children<\/code>\u5c5e\u6027\uff0c\u901a\u8fc7\u5b83\u4eec\u53ef\u4ee5\u8bbf\u95ee\u5230\u7ec4\u4ef6\u7684\u76f4\u63a5\u7236\u7ec4\u4ef6\u548c\u5b50\u7ec4\u4ef6\u5217\u8868\u3002<\/p>\n<\/p>\n<\/li>\n<\/ul>\n<p><h3>\u516d\u3001.SYNC MODIFIER<\/h3>\n<\/p>\n<ul>\n<li>\n<p><code>.sync<\/code>\u4fee\u9970\u7b26<\/p>\n<p>\u5728Vue 2.3.0\u4e2d\u5f15\u5165\u4e86<code>.sync<\/code>\u4fee\u9970\u7b26\uff0c\u8fd9\u662f\u4e00\u79cd\u8bed\u6cd5\u7cd6\uff0c\u7528\u4e8e\u5728\u7236\u5b50\u7ec4\u4ef6\u95f4\u8fdb\u884c\u53cc\u5411\u6570\u636e\u7ed1\u5b9a\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528\u573a\u666f<\/p>\n<p>\u5f53props\u9700\u8981&quot;\u53cc\u5411\u7ed1\u5b9a&quot;\u65f6\u4f7f\u7528\u3002\u8fd9\u5141\u8bb8\u5b50\u7ec4\u4ef6\u66f4\u6539\u88ab\u7ed1\u5b9a\u7684props\u65f6\u53d1\u51fa\u4e00\u4e2a\u66f4\u65b0\u4e8b\u4ef6\u7ed9\u7236\u7ec4\u4ef6\u3002<\/p>\n<\/p>\n<\/li>\n<\/ul>\n<p><h3>\u4e03\u3001CUSTOM DIRECTIVES<\/h3>\n<\/p>\n<p><p><strong>\u53ef\u4ee5\u521b\u5efa\u81ea\u5b9a\u4e49\u6307\u4ee4\u6765\u5b9e\u73b0\u7236\u5b50\u7ec4\u4ef6\u4e4b\u95f4\u7684\u901a\u4fe1\u3002<\/strong><\/p>\n<\/p>\n<ul>\n<li>\n<p>\u521b\u5efa\u81ea\u5b9a\u4e49\u6307\u4ee4<\/p>\n<p>\u901a\u8fc7Vue.directive\u6ce8\u518c\u5168\u5c40\u6307\u4ee4\uff0c\u4e5f\u53ef\u4ee5\u5728\u7ec4\u4ef6\u4e2d\u5b9a\u4e49\u5c40\u90e8\u6307\u4ee4\u3002\u6307\u4ee4\u53ef\u4ee5\u63a5\u6536\u53c2\u6570\u548c\u4fee\u9970\u7b26\uff0c\u4ece\u800c\u5bf9\u884c\u4e3a\u8fdb\u884c\u5b9a\u5236\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528\u81ea\u5b9a\u4e49\u6307\u4ee4<\/p>\n<p>\u5728\u7ec4\u4ef6\u5185\u4f7f\u7528\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7\u6307\u5b9a\u7684\u65b9\u5f0f\u53bb\u4f20\u9012\u4fe1\u606f\uff0c\u6216\u8005\u6539\u53d8\u7ec4\u4ef6\u7684\u884c\u4e3a\u65b9\u5f0f\u3002<\/p>\n<\/p>\n<\/li>\n<\/ul>\n<p><p>Vue\u7ec4\u4ef6\u95f4\u7684\u901a\u4fe1\u662f\u4fdd\u8bc1\u5e94\u7528\u7ed3\u6784\u6e05\u6670\u3001\u529f\u80fd\u534f\u4f5c\u6d41\u7545\u7684\u5173\u952e\u3002\u9009\u62e9\u6b63\u786e\u7684\u901a\u4fe1\u65b9\u5f0f\u5bf9\u5e94\u7528\u7684\u53ef\u7ef4\u62a4\u6027\u548c\u6269\u5c55\u6027\u90fd\u81f3\u5173\u91cd\u8981\u3002\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u5e94\u6839\u636e\u7ec4\u4ef6\u4e4b\u95f4\u7684\u5173\u7cfb\u3001\u6570\u636e\u6d41\u5411\u548c\u590d\u6742\u5ea6\u7b49\u56e0\u7d20\u7efc\u5408\u8003\u8651\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p><strong>Q: \u5982\u4f55\u5728Vue\u7ec4\u4ef6\u95f4\u8fdb\u884c\u7236\u5b50\u7ec4\u4ef6\u901a\u4fe1\uff1f<\/strong><br \/>\nA: \u5728Vue\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7props\u548c$emit\u6765\u5b9e\u73b0\u7236\u5b50\u7ec4\u4ef6\u4e4b\u95f4\u7684\u901a\u4fe1\u3002\u7236\u7ec4\u4ef6\u901a\u8fc7props\u5c06\u6570\u636e\u4f20\u9012\u7ed9\u5b50\u7ec4\u4ef6\uff0c\u5b50\u7ec4\u4ef6\u901a\u8fc7$emit\u89e6\u53d1\u4e8b\u4ef6\u5e76\u5c06\u6570\u636e\u4f20\u9012\u7ed9\u7236\u7ec4\u4ef6\u3002<\/p>\n<p><strong>Q: Vue\u7ec4\u4ef6\u95f4\u5982\u4f55\u8fdb\u884c\u5144\u5f1f\u7ec4\u4ef6\u901a\u4fe1\uff1f<\/strong><br \/>\nA: 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