{"id":5991,"date":"2025-06-12T09:57:43","date_gmt":"2025-06-17T02:23:42","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5991"},"modified":"2025-06-17T09:57:43","modified_gmt":"2025-06-17T02:23:42","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%e8%87%aa%e5%ae%9a%e7%be%a9%e6%8c%87%e4%bb%a4%e9%80%b2%e8%a1%8cdom%e6%93%8d%e4%bd%9c","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%e8%87%aa%e5%ae%9a%e7%be%a9%e6%8c%87%e4%bb%a4%e9%80%b2%e8%a1%8cdom%e6%93%8d%e4%bd%9c\/","title":{"rendered":"\u638c\u63e1 Vue 3 \u81ea\u5b9a\u7fa9\u6307\u4ee4\uff1a\u9032\u968e DOM \u64cd\u4f5c\u8207\u6700\u4f73\u5be6\u8e10\u6559\u5b78"},"content":{"rendered":"

<\/p>\n

\u638c\u63e1 Vue 3 \u81ea\u5b9a\u7fa9\u6307\u4ee4\uff1a\u9032\u968e DOM \u64cd\u4f5c\u8207\u6700\u4f73\u5be6\u8e10\u6559\u5b78<\/h1>\n

Vue.js \u662f\u4e00\u500b\u8f15\u91cf\u7d1a\u7684 JavaScript \u6846\u67b6\uff0c\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u9ad8\u6548\u7684\u5de5\u5177\u4ee5\u958b\u767c\u9ad8\u54c1\u8cea\u7684 Web \u61c9\u7528\u7a0b\u5f0f\u3002\u81ea\u5b9a\u7fa9\u6307\u4ee4\uff08directives\uff09\u662f Vue.js \u7684\u4e00\u9805\u5f37\u5927\u529f\u80fd\uff0c\u8b93\u958b\u767c\u8005\u80fd\u5920\u9748\u6d3b\u5730\u64cd\u4f5c DOM \u5143\u7d20\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728 Vue 3 \u4e2d\u4f7f\u7528\u81ea\u5b9a\u7fa9\u6307\u4ee4\uff0c\u4e26\u63d0\u4f9b\u5be6\u4f5c\u7bc4\u4f8b\u53ca\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n

\u4f7f\u7528\u81ea\u5b9a\u7fa9\u6307\u4ee4\u7684\u57fa\u672c\u65b9\u6cd5<\/h2>\n

\u5728 Vue 3 \u4e2d\uff0c\u81ea\u5b9a\u7fa9\u6307\u4ee4\u7684\u4f7f\u7528\u975e\u5e38\u7c21\u55ae\u3002\u4f60\u53ea\u9700\u8981\u5728 HTML \u6a19\u7c64\u4e2d\u52a0\u5165 `v-` \u524d\u7db4\u53ca\u6307\u4ee4\u540d\u7a31\u5373\u53ef\u3002\u4f8b\u5982\uff0c\u82e5\u8981\u6539\u8b8a\u4e00\u500b\u5143\u7d20\u7684\u984f\u8272\uff0c\u53ef\u4ee5\u4f7f\u7528 `v-bind` \u6307\u4ee4\uff1a<\/p>\n

\n
\n  \u9019\u500b\u6a19\u7c64\u6703\u8b8a\u6210\u7d05\u8272\n<\/div>\n<\/pre>\n
\u6b64\u5916\uff0c\u5982\u679c\u8981\u70ba\u6a19\u7c64\u7d81\u5b9a\u4e8b\u4ef6\uff0c\u53ef\u4ee5\u4f7f\u7528 `v-on` \u6307\u4ee4\uff1a<\/p>\n
\n
\n  \u9ede\u64ca\u9019\u500b\u6a19\u7c64\u6703\u57f7\u884c doSomething \u51fd\u6578\n<\/div>\n<\/pre>\n
\u9664\u4e86 `v-bind` \u548c `v-on`\uff0cVue.js \u9084\u63d0\u4f9b\u4e86\u8a31\u591a\u5176\u4ed6\u5167\u5efa\u6307\u4ee4\uff0c\u5982 `v-if`\u3001`v-for` \u7b49\uff0c\u80fd\u5920\u9032\u4e00\u6b65\u64f4\u5c55 DOM \u64cd\u4f5c\u7684\u53ef\u80fd\u6027\u3002<\/p>\n
\u5982\u4f55\u81ea\u5b9a\u7fa9\u6307\u4ee4\uff1f<\/h2>\n
\u5728 Vue 3 \u4e2d\uff0c\u81ea\u5b9a\u7fa9\u6307\u4ee4\u7684\u65b9\u5f0f\u4e5f\u6709\u6240\u66f4\u65b0\uff0c\u73fe\u5728\u4f7f\u7528 `app.directive()` \u65b9\u6cd5\u4f86\u8a3b\u518a\u6307\u4ee4\u3002\u4ee5\u4e0b\u662f\u81ea\u5b9a\u7fa9\u4e00\u500b\u540d\u70ba `v-hello` \u7684\u6307\u4ee4\u7684\u7bc4\u4f8b\uff1a<\/p>\n
\nconst app = Vue.createApp({ \/* \u6839\u7d44\u4ef6\u9078\u9805 *\/ });\n\napp.directive('hello', {\n  beforeMount(el, binding) {\n    el.innerHTML = 'Hello, ' + binding.value;\n  }\n});\n<\/pre>\n
\u7136\u5f8c\uff0c\u4f60\u53ef\u4ee5\u5728 HTML \u4e2d\u4f7f\u7528\u9019\u500b\u81ea\u5b9a\u7fa9\u6307\u4ee4\uff1a<\/p>\n
\n
<\/div>\n<\/pre>\n
\u9019\u6a23\uff0c\u8a72 `<\/p>\n
` \u6a19\u7c64\u7684\u5167\u5bb9\u5c07\u986f\u793a\u70ba \"Hello, World\"\u3002<\/p>\n
\u5e38\u898b\u7684\u81ea\u5b9a\u7fa9\u6307\u4ee4\u61c9\u7528<\/h2>\n
\u81ea\u5b9a\u7fa9\u6307\u4ee4\u53ef\u4ee5\u7528\u65bc\u591a\u7a2e\u60c5\u5883\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u61c9\u7528\u7bc4\u4f8b\uff1a<\/p>\n
1. **\u52d5\u614b\u6a23\u5f0f\u8b8a\u66f4**\uff1a\u6839\u64da\u67d0\u4e9b\u689d\u4ef6\u6539\u8b8a\u5143\u7d20\u7684\u6a23\u5f0f\u3002
\n2. **\u8868\u55ae\u9a57\u8b49**\uff1a\u5728\u7528\u6236\u8f38\u5165\u6642\u9032\u884c\u5373\u6642\u9a57\u8b49\uff0c\u63d0\u4f9b\u53cd\u994b\u3002
\n3. **\u52d5\u756b\u6548\u679c**\uff1a\u70ba\u5143\u7d20\u6dfb\u52a0\u9032\u5165\u6216\u9000\u51fa\u7684\u52d5\u756b\u6548\u679c\u3002<\/p>\n
\u932f\u8aa4\u6392\u9664\u8207\u6700\u4f73\u5be6\u8e10<\/h2>\n
\u5728\u4f7f\u7528\u81ea\u5b9a\u7fa9\u6307\u4ee4\u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u4e00\u4e9b\u5e38\u898b\u554f\u984c\uff1a<\/p>\n
- **\u6307\u4ee4\u672a\u6b63\u78ba\u7d81\u5b9a**\uff1a\u78ba\u4fdd\u5728 Vue \u61c9\u7528\u7684\u521d\u59cb\u5316\u968e\u6bb5\u8a3b\u518a\u6307\u4ee4\u3002
\n- **\u4f5c\u7528\u57df\u554f\u984c**\uff1a\u81ea\u5b9a\u7fa9\u6307\u4ee4\u4e2d\u7684 `this` \u53ef\u80fd\u4e0d\u662f\u4f60\u9810\u671f\u7684\u5c0d\u8c61\uff0c\u8acb\u6aa2\u67e5\u4e0a\u4e0b\u6587\u3002<\/p>\n
\u6700\u4f73\u5be6\u8e10\u5305\u62ec\uff1a
\n- \u9650\u5236\u6307\u4ee4\u7684\u8cac\u4efb\u7bc4\u570d\uff0c\u6bcf\u500b\u6307\u4ee4\u53ea\u8655\u7406\u4e00\u7a2e\u529f\u80fd\u3002
\n- \u4f7f\u7528\u6e05\u6670\u7684\u547d\u540d\u898f\u5247\u4ee5\u4fbf\u65bc\u7dad\u8b77\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u81ea\u5b9a\u7fa9\u6307\u4ee4\u662f Vue.js \u4e2d\u4e00\u500b\u91cd\u8981\u4e14\u5f37\u5927\u7684\u7279\u6027\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u9748\u6d3b\u5730\u64cd\u4f5c DOM\u3002\u900f\u904e\u7c21\u55ae\u7684 API\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u5730\u5275\u5efa\u548c\u4f7f\u7528\u81ea\u5b9a\u7fa9\u6307\u4ee4\uff0c\u4ee5\u6eff\u8db3\u8907\u96dc\u7684\u9700\u6c42\u3002<\/p>\n
Q&A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n
Q: \u81ea\u5b9a\u7fa9\u6307\u4ee4\u548c\u5167\u5efa\u6307\u4ee4\u6709\u4ec0\u9ebc\u4e0d\u540c\uff1f<\/h3>\n
A: \u81ea\u5b9a\u7fa9\u6307\u4ee4\u662f\u958b\u767c\u8005\u81ea\u884c\u5275\u5efa\u7684\u6307\u4ee4\uff0c\u800c\u5167\u5efa\u6307\u4ee4\uff08\u5982 v-if\u3001v-for\uff09\u662f Vue.js \u6846\u67b6\u81ea\u5e36\u7684\u6307\u4ee4\uff0c\u7528\u65bc\u8655\u7406\u76f8\u95dc\u7684 DOM \u64cd\u4f5c\u3002<\/p>\n
Q: \u5982\u4f55\u5728\u81ea\u5b9a\u7fa9\u6307\u4ee4\u4e2d\u4f7f\u7528 Vue \u5be6\u4f8b\u7684\u6578\u64da\uff1f<\/h3>\n
A: \u53ef\u4ee5\u900f\u904e `binding` \u53c3\u6578\u4f86\u7372\u53d6\u50b3\u5165\u7684\u503c\uff0c\u4e26\u5728\u6307\u4ee4\u4e2d\u9032\u884c\u76f8\u95dc\u64cd\u4f5c\u3002<\/p>\n
Q: \u81ea\u5b9a\u7fa9\u6307\u4ee4\u80fd\u5426\u8207\u7d44\u4ef6\u4e00\u8d77\u4f7f\u7528\uff1f<\/h3>\n
A: \u53ef\u4ee5\uff0c\u81ea\u5b9a\u7fa9\u6307\u4ee4\u53ef\u4ee5\u5728\u7d44\u4ef6\u4e2d\u4f7f\u7528\uff0c\u9019\u6a23\u80fd\u8b93\u7d44\u4ef6\u64c1\u6709\u66f4\u5f37\u7684\u529f\u80fd\u6027\u3002<\/p>\n
---<\/p>\n","protected":false},"excerpt":{"rendered":"
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