{"id":1387,"date":"2024-11-10T13:35:16","date_gmt":"2024-11-10T05:35:16","guid":{"rendered":"https:\/\/fwq.ai\/blog\/1387\/"},"modified":"2024-11-10T13:35:16","modified_gmt":"2024-11-10T05:35:16","slug":"vue-3-%e4%b8%ad-reactive-%e8%83%bd%e6%8e%a5%e6%94%b6%e5%9f%ba%e6%9c%ac%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e5%b9%b6%e5%ae%9e%e7%8e%b0%e5%93%8d%e5%ba%94%e5%bc%8f%e5%90%97%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/1387\/","title":{"rendered":"Vue 3 \u4e2d reactive \u80fd\u63a5\u6536\u57fa\u672c\u6570\u636e\u7c7b\u578b\u5e76\u5b9e\u73b0\u54cd\u5e94\u5f0f\u5417\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173041974339165.jpg\" class=\"aligncenter\" title=\"Vue 3 \u4e2d reactive \u80fd\u63a5\u6536\u57fa\u672c\u6570\u636e\u7c7b\u578b\u5e76\u5b9e\u73b0\u54cd\u5e94\u5f0f\u5417\uff1f\u63d2\u56fe\" alt=\"Vue 3 \u4e2d reactive \u80fd\u63a5\u6536\u57fa\u672c\u6570\u636e\u7c7b\u578b\u5e76\u5b9e\u73b0\u54cd\u5e94\u5f0f\u5417\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong> 3 reactive \u771f\u7684\u80fd\u63a5\u6536\u57fa\u672c\u6570\u636e\u7c7b\u578b\u5e76\u5b9e\u73b0\u54cd\u5e94\u5f0f\uff1f<\/strong><\/p>\n<p>\u5728 Vue 3 \u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 reactive \u548c ref \u521b\u5efa\u54cd\u5e94\u5f0f\u6570\u636e\u3002\u7136\u800c\uff0c\u8bb8\u591a\u5f00\u53d1\u8005\u5bf9 reactive \u63a5\u6536\u57fa\u672c\u6570\u636e\u7c7b\u578b\u7684\u54cd\u5e94\u5f0f\u884c\u4e3a\u611f\u5230\u56f0\u60d1\u3002<\/p>\n<p>\u5728\u63d0\u4f9b\u7684\u793a\u4f8b\u4e2d\uff0creactive \u548c ref \u90fd\u521b\u5efa\u4e86\u63a5\u6536\u6570\u5b57 1 \u7684\u53d8\u91cf\uff0c\u5e76\u7ed1\u5b9a\u5230\u754c\u9762\u4e0a\u3002\u5c3d\u7ba1\u63a7\u5236\u53f0\u4f1a\u8f93\u51fa\u8b66\u544a\uff0c\u4f46\u754c\u9762\u4e0a\u7684\u8fd9\u4e24\u4e2a\u6570\u5b57\u90fd\u4f1a\u968f\u7740\u5b9a\u65f6\u5668\u7684\u8c03\u7528\u800c\u54cd\u5e94\u5f0f\u53d8\u5316\u3002<\/p>\n<p>\u4e86\u89e3\u8fd9\u79cd\u60c5\u51b5\u7684\u5173\u952e\u5728\u4e8e\uff0c<strong>reactive \u5b9e\u9645\u4e0a\u5e76\u4e0d\u4f1a\u4f7f\u57fa\u672c\u6570\u636e\u7c7b\u578b\u54cd\u5e94\u5f0f<\/strong>\u3002\u5982 Vue\/reactivity \u6e90\u7801\u6240\u793a\uff0creactive \u53ea\u80fd\u4ee3\u7406\u5bf9\u8c61\uff1a<\/p>\n<pre>if (target &amp;&amp; typeof target === 'object' &amp;&amp; Object.isExtensible(target)) {\n  return createReactiveObject(target, 0, \/** vueComponentInstance and keys *\/)\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u90a3\u4e48\uff0c\u4e3a\u4ec0\u4e48\u5728\u793a\u4f8b\u4e2d\u6dfb\u52a0 msgRef \u540e\u4e24\u4e2a\u53d8\u91cf\u90fd\u4f1a\u66f4\u65b0\u5462\uff1f\u8fd9\u662f\u56e0\u4e3a msgRef \u662f\u4e00\u4e2a\u54cd\u5e94\u5f0f\u5bf9\u8c61\uff0c\u800c Vue 3 \u4e2d\u7684\u4f9d\u8d56\u6536\u96c6\u662f\u57fa\u4e8e\u7ec4\u4ef6\u7684\u3002\u56e0\u6b64\uff0crender \u51fd\u6570\u4f1a\u88ab\u6536\u96c6\u4e3a msgRef \u7684\u4f9d\u8d56\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>\u5f53 msgRef \u66f4\u65b0\u65f6\uff0c\u5b83\u4f1a\u89e6\u53d1\u4f9d\u8d56\u66f4\u65b0\uff0c\u5bfc\u81f4 render \u51fd\u6570\u91cd\u65b0\u8fd0\u884c\u3002\u7531\u4e8e diff \u7b97\u6cd5\uff0cmsgReactive \u5373\u4f7f\u4e0d\u662f\u54cd\u5e94\u5f0f\u7684\uff0c\u4e5f\u6703\u6070\u597d\u5728\u9019\u6b21\u91cd\u65b0\u8fd0\u884c\u4e2d\u88ab\u66f4\u65b0\u3002<\/p>\n<p>\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0cmsgReactive \u53ea\u662f\u201c\u8e6d\u201d\u4e86 msgRef \u7684\u66f4\u65b0\uff0c\u800c\u4e0d\u662f\u771f\u6b63\u5be6\u73fe\u4e86\u97ff\u61c9\u5f0f\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fVue 3 \u4e2d reactive \u80fd\u63a5\u6536\u57fa\u672c\u6570\u636e\u7c7b\u578b\u5e76\u5b9e\u73b0\u54cd\u5e94\u5f0f\u5417\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>3 reactive \u771f\u7684\u80fd\u63a5\u6536\u57fa\u672c\u6570\u636e\u7c7b\u578b\u5e76\u5b9e\u73b0\u54cd\u5e94\u5f0f\uff1f \u5728 Vue 3 \u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 reactive \u548c ref \u521b\u5efa\u54cd\u5e94\u5f0f\u6570\u636e\u3002\u7136\u800c\uff0c\u8bb8\u591a\u5f00\u53d1\u8005\u5bf9 reactive \u63a5\u6536\u57fa\u672c\u6570\u636e\u7c7b\u578b\u7684\u54cd\u5e94\u5f0f\u884c\u4e3a\u611f\u5230\u56f0\u60d1\u3002 \u5728\u63d0\u4f9b\u7684\u793a\u4f8b\u4e2d\uff0creactive \u548c ref \u90fd\u521b\u5efa\u4e86\u63a5\u6536\u6570\u5b57 1 \u7684\u53d8\u91cf\uff0c\u5e76\u7ed1\u5b9a\u5230\u754c\u9762\u4e0a\u3002\u5c3d\u7ba1\u63a7\u5236\u53f0\u4f1a\u8f93\u51fa\u8b66\u544a\uff0c\u4f46\u754c\u9762\u4e0a\u7684\u8fd9\u4e24\u4e2a\u6570\u5b57\u90fd\u4f1a\u968f\u7740\u5b9a\u65f6\u5668\u7684\u8c03\u7528\u800c\u54cd\u5e94\u5f0f\u53d8\u5316\u3002 \u4e86\u89e3\u8fd9\u79cd\u60c5\u51b5\u7684\u5173\u952e\u5728\u4e8e\uff0creactive \u5b9e\u9645\u4e0a\u5e76\u4e0d\u4f1a\u4f7f\u57fa\u672c\u6570\u636e\u7c7b\u578b\u54cd\u5e94\u5f0f\u3002\u5982 Vue\/reactivity \u6e90\u7801\u6240\u793a\uff0creactive \u53ea\u80fd\u4ee3\u7406\u5bf9\u8c61\uff1a if (target &amp;&amp; typeof target === &#8216;object&#8217; &amp;&amp; Object.isExtensible(target)) { return createReactiveObject(target, 0, \/** vueComponentInstance and keys *\/) } \u767b\u5f55\u540e\u590d\u5236 \u90a3\u4e48\uff0c\u4e3a\u4ec0\u4e48\u5728\u793a\u4f8b\u4e2d\u6dfb\u52a0 msgRef \u540e\u4e24\u4e2a\u53d8\u91cf\u90fd\u4f1a\u66f4\u65b0\u5462\uff1f\u8fd9\u662f\u56e0\u4e3a msgRef \u662f\u4e00\u4e2a\u54cd\u5e94\u5f0f\u5bf9\u8c61\uff0c\u800c Vue 3 \u4e2d\u7684\u4f9d\u8d56\u6536\u96c6\u662f\u57fa\u4e8e\u7ec4\u4ef6\u7684\u3002\u56e0\u6b64\uff0crender \u51fd\u6570\u4f1a\u88ab\u6536\u96c6\u4e3a msgRef \u7684\u4f9d\u8d56\uff1a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-1387","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/1387","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=1387"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/1387\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=1387"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=1387"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=1387"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}