{"id":5943,"date":"2025-06-15T10:10:34","date_gmt":"2025-06-17T02:18:34","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5943"},"modified":"2025-06-17T10:10:34","modified_gmt":"2025-06-17T02:18:34","slug":"%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e5%9c%a8vue%e4%b8%ad%e4%bd%bf%e7%94%a8%e4%ba%8b%e4%bb%b6%e6%80%bb%e7%ba%bf","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/vue-js\/%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e5%9c%a8vue%e4%b8%ad%e4%bd%bf%e7%94%a8%e4%ba%8b%e4%bb%b6%e6%80%bb%e7%ba%bf\/","title":{"rendered":"\u6df1\u5165\u5b78\u7fd2 Vue 3 \u4e8b\u4ef6\u7e3d\u7dda\uff1a\u6700\u65b0\u8a9e\u6cd5\u8207\u6700\u4f73\u5be6\u8e10"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"Vue, \u4e8b\u4ef6\u7e3d\u7dda, Vue.js, Vue 3, JavaScript, \u7d44\u4ef6\u9593\u901a\u8a0a\"><\/p>\n<p>Vue.js \u662f\u4e00\u500b\u8f15\u91cf\u7d1a\u7684 JavaScript \u6846\u67b6\uff0c\u5141\u8a31\u958b\u767c\u8005\u5feb\u901f\u958b\u767c\u9ad8\u54c1\u8cea\u7684 Web \u61c9\u7528\u7a0b\u5f0f\u3002Vue.js \u7684\u300c\u4e8b\u4ef6\u7e3d\u7dda\u300d\u529f\u80fd\u4f7f\u4e0d\u540c\u7d44\u4ef6\u4e4b\u9593\u7684\u6578\u64da\u50b3\u905e\u8b8a\u5f97\u7c21\u55ae\u800c\u9ad8\u6548\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u5728 **Vue 3** \u4e2d\u4f7f\u7528\u4e8b\u4ef6\u7e3d\u7dda\uff0c\u5305\u62ec\u6700\u65b0\u7684\u8a9e\u6cd5\u548c\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n<h2>\u4ec0\u9ebc\u662f\u4e8b\u4ef6\u7e3d\u7dda\uff1f<\/h2>\n<p>\u4e8b\u4ef6\u7e3d\u7dda\u662f\u4e00\u7a2e\u8a2d\u8a08\u6a21\u5f0f\uff0c\u4f7f\u958b\u767c\u8005\u80fd\u5920\u5728\u4e0d\u540c\u7684\u7d44\u4ef6\u4e4b\u9593\u50b3\u905e\u8cc7\u6599\uff0c\u800c\u7121\u9700\u7d93\u904e\u7236\u7d44\u4ef6\u3002\u9019\u7a2e\u6a21\u5f0f\u7279\u5225\u9069\u5408\u65bc\u7d44\u4ef6\u4e4b\u9593\u7684\u975e\u7236\u5b50\u95dc\u4fc2\u7684\u6578\u64da\u50b3\u905e\uff0c\u4f7f\u5f97\u61c9\u7528\u7a0b\u5f0f\u7684\u7d50\u69cb\u66f4\u52a0\u6e05\u6670\u4e14\u53ef\u7dad\u8b77\u3002<\/p>\n<h2>Vue 3 \u4e2d\u7684\u4e8b\u4ef6\u7e3d\u7dda<\/h2>\n<p>\u5728 Vue 3 \u4e2d\uff0c\u4e8b\u4ef6\u7e3d\u7dda\u7684\u4f7f\u7528\u65b9\u5f0f\u8207 Vue 2 \u7565\u6709\u4e0d\u540c\u3002\u4f7f\u7528 Vue 3 \u7684\u7d44\u4ef6\u7cfb\u7d71\u548c Composition API\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u9748\u6d3b\u5730\u8655\u7406\u4e8b\u4ef6\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u4e8b\u4ef6\u7e3d\u7dda\u7684\u57fa\u672c\u6b65\u9a5f\u3002<\/p>\n<h2>\u5982\u4f55\u4f7f\u7528 Vue 3 \u4e2d\u7684\u4e8b\u4ef6\u7e3d\u7dda\uff1f<\/h2>\n<p>\u5728 Vue 3 \u4e2d\u4f7f\u7528\u4e8b\u4ef6\u7e3d\u7dda\u975e\u5e38\u7c21\u55ae\u3002\u9996\u5148\uff0c\u4f60\u9700\u8981\u5275\u5efa\u4e00\u500b\u4e8b\u4ef6\u7e3d\u7dda\u7684\u5be6\u4f8b\uff0c\u7136\u5f8c\u5728\u7d44\u4ef6\u4e2d\u4f7f\u7528 `<span class=\"katex math inline\">emit` \u548c `<\/span>on` \u65b9\u6cd5\u4f86\u767c\u51fa\u548c\u63a5\u6536\u4e8b\u4ef6\u3002<\/p>\n<h3>\u6b65\u9a5f 1\uff1a\u5275\u5efa\u4e8b\u4ef6\u7e3d\u7dda<\/h3>\n<p>\u5728\u4f60\u7684 Vue \u61c9\u7528\u4e2d\uff0c\u53ef\u4ee5\u5275\u5efa\u4e00\u500b\u4e8b\u4ef6\u7e3d\u7dda\u5be6\u4f8b\uff0c\u901a\u5e38\u5728 `src\/main.js` \u4e2d\u9032\u884c\u8a2d\u7f6e\uff1a<\/p>\n<pre><code class=\"language-javascript\">\nimport { createApp } from 'vue';\nimport App from '.\/App.vue';\n\nconst app = createApp(App);\napp.config.globalProperties.$bus = new Vue(); \/\/ \u4f7f\u7528 Vue 2 \u7684\u5beb\u6cd5\napp.mount('#app');\n<\/code><\/pre>\n<h3>\u6b65\u9a5f 2\uff1a\u767c\u51fa\u4e8b\u4ef6<\/h3>\n<p>\u5728\u767c\u51fa\u4e8b\u4ef6\u7684\u7d44\u4ef6\u4e2d\uff0c\u4f7f\u7528 `$emit` \u65b9\u6cd5\u4f86\u767c\u51fa\u4e8b\u4ef6\uff1a<\/p>\n<pre><code class=\"language-javascript\">\nthis.<span class=\"katex math inline\">bus.<\/span>emit('myEvent', data);\n<\/code><\/pre>\n<h3>\u6b65\u9a5f 3\uff1a\u63a5\u6536\u4e8b\u4ef6<\/h3>\n<p>\u5728\u9700\u8981\u63a5\u6536\u4e8b\u4ef6\u7684\u7d44\u4ef6\u4e2d\uff0c\u4f7f\u7528 `$on` \u65b9\u6cd5\u4f86\u76e3\u807d\u4e8b\u4ef6\uff1a<\/p>\n<pre><code class=\"language-javascript\">\nthis.<span class=\"katex math inline\">bus.<\/span>on('myEvent', (data) => {\n  \/\/ \u8655\u7406\u63a5\u6536\u5230\u7684\u6578\u64da\n});\n<\/code><\/pre>\n<h2>\u5168\u5c40\u4e8b\u4ef6\u7e3d\u7dda\u7684\u4f7f\u7528<\/h2>\n<p>\u5728 Vue 3 \u4e2d\uff0c\u82e5\u60f3\u4f7f\u7528\u5168\u5c40\u4e8b\u4ef6\u7e3d\u7dda\uff0c\u53ef\u4ee5\u901a\u904e\u5168\u5c40\u5c6c\u6027\u4f86\u8a2d\u7f6e\uff1a<\/p>\n<pre><code class=\"language-javascript\">\nimport mitt from 'mitt';\nconst bus = mitt();\n\napp.config.globalProperties.$bus = bus;\n<\/code><\/pre>\n<p>\u767c\u51fa\u548c\u63a5\u6536\u4e8b\u4ef6\u7684\u65b9\u6cd5\u8207\u524d\u9762\u76f8\u540c\uff1a<\/p>\n<pre><code class=\"language-javascript\">\n\/\/ \u767c\u51fa\u4e8b\u4ef6\nthis.<span class=\"katex math inline\">bus.emit('myEvent', data);\n\n\/\/ \u63a5\u6536\u4e8b\u4ef6\nthis.<\/span>bus.on('myEvent', (data) => {\n  \/\/ \u8655\u7406\u63a5\u6536\u5230\u7684\u6578\u64da\n});\n<\/code><\/pre>\n<h2>\u932f\u8aa4\u6392\u9664<\/h2>\n<p>\u5728\u4f7f\u7528\u4e8b\u4ef6\u7e3d\u7dda\u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u4ee5\u4e0b\u5e38\u898b\u554f\u984c\uff1a<\/p>\n<p>&#8211; **\u4e8b\u4ef6\u672a\u89f8\u767c**\uff1a\u78ba\u4fdd\u4f60\u6b63\u78ba\u4f7f\u7528 `<span class=\"katex math inline\">emit` \u548c `<\/span>on`\uff0c\u4e26\u5728\u6b63\u78ba\u7684\u7d44\u4ef6\u4e2d\u8abf\u7528\u5b83\u5011\u3002<br \/>\n&#8211; **\u6578\u64da\u672a\u66f4\u65b0**\uff1a\u6aa2\u67e5\u4e8b\u4ef6\u50b3\u905e\u7684\u6578\u64da\u683c\u5f0f\u662f\u5426\u6b63\u78ba\uff0c\u78ba\u4fdd\u5728\u63a5\u6536\u65b9\u6b63\u78ba\u8655\u7406\u6578\u64da\u3002<\/p>\n<h2>\u5ef6\u4f38\u61c9\u7528<\/h2>\n<p>\u4e8b\u4ef6\u7e3d\u7dda\u4e0d\u50c5\u53ef\u4ee5\u7528\u65bc\u7c21\u55ae\u7684\u8cc7\u6599\u50b3\u905e\uff0c\u4e5f\u53ef\u4ee5\u7528\u65bc\u8907\u96dc\u7684\u61c9\u7528\u5834\u666f\uff0c\u4f8b\u5982\uff1a<\/p>\n<p>&#8211; **\u5168\u5c40\u72c0\u614b\u7ba1\u7406**\uff1a\u642d\u914d Vuex \u4f7f\u7528\uff0c\u8f15\u9b06\u7ba1\u7406\u5168\u5c40\u72c0\u614b\u3002<br \/>\n&#8211; **\u8de8\u7d44\u4ef6\u901a\u8a0a**\uff1a\u5728\u5927\u578b\u61c9\u7528\u4e2d\uff0c\u4f7f\u7528\u4e8b\u4ef6\u7e3d\u7dda\u53ef\u6e1b\u5c11\u7d44\u4ef6\u4e4b\u9593\u7684\u8026\u5408\u5ea6\u3002<\/p>\n<h2>\u7e3d\u7d50<\/h2>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u8a73\u7d30\u4ecb\u7d39\u4e86\u5982\u4f55\u5728 Vue 3 \u4e2d\u4f7f\u7528\u4e8b\u4ef6\u7e3d\u7dda\uff0c\u4e26\u63d0\u4f9b\u4e86\u6700\u65b0\u7684\u8a9e\u6cd5\u548c\u6700\u4f73\u5be6\u8e10\u3002\u900f\u904e\u6709\u6548\u5730\u4f7f\u7528\u4e8b\u4ef6\u7e3d\u7dda\uff0c\u958b\u767c\u8005\u80fd\u5920\u5728\u4e0d\u540c\u7d44\u4ef6\u4e4b\u9593\u8f15\u9b06\u50b3\u905e\u8cc7\u6599\uff0c\u63d0\u5347\u61c9\u7528\u7684\u53ef\u7dad\u8b77\u6027\u548c\u64f4\u5c55\u6027\u3002<\/p>\n<h2>Q&#038;A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n<h3>Q1: \u4e8b\u4ef6\u7e3d\u7dda\u548c Vuex \u6709\u4ec0\u9ebc\u5340\u5225\uff1f<\/h3>\n<p>A1: \u4e8b\u4ef6\u7e3d\u7dda\u9069\u5408\u65bc\u7c21\u55ae\u7684\u7d44\u4ef6\u9593\u901a\u8a0a\uff0c\u800c Vuex \u662f\u4e00\u500b\u72c0\u614b\u7ba1\u7406\u5eab\uff0c\u9069\u5408\u65bc\u5927\u578b\u61c9\u7528\u4e2d\u7684\u5168\u5c40\u72c0\u614b\u7ba1\u7406\u3002<\/p>\n<h3>Q2: \u4f55\u6642\u61c9\u8a72\u4f7f\u7528\u4e8b\u4ef6\u7e3d\u7dda\uff1f<\/h3>\n<p>A2: \u7576\u7d44\u4ef6\u4e4b\u9593\u5b58\u5728\u975e\u7236\u5b50\u95dc\u4fc2\u6642\uff0c\u4e8b\u4ef6\u7e3d\u7dda\u662f\u4e00\u500b\u7406\u60f3\u7684\u9078\u64c7\uff0c\u7279\u5225\u662f\u7576\u6578\u64da\u9700\u8981\u5728\u591a\u500b\u7d44\u4ef6\u4e4b\u9593\u5171\u4eab\u6642\u3002<\/p>\n<h3>Q3: \u5982\u4f55\u8655\u7406\u4e8b\u4ef6\u7e3d\u7dda\u4e2d\u7684\u5167\u5b58\u6cc4\u6f0f\u554f\u984c\uff1f<\/h3>\n<p>A3: \u78ba\u4fdd\u5728\u7d44\u4ef6\u92b7\u6bc0\u6642\u4f7f\u7528 `$off` 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