{"id":32551,"date":"2024-11-25T11:03:22","date_gmt":"2024-11-25T03:03:22","guid":{"rendered":"https:\/\/fwq.ai\/blog\/32551\/"},"modified":"2024-11-25T11:03:22","modified_gmt":"2024-11-25T03:03:22","slug":"%e5%b0%8f%e7%a8%8b%e5%ba%8f%ef%bc%9a%e4%bd%bf%e7%94%a8-wxkey-%e6%8f%90%e5%8d%87-wxfor-%e7%9a%84%e6%b8%b2%e6%9f%93%e6%95%88%e7%8e%87","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/32551\/","title":{"rendered":"\u5c0f\u7a0b\u5e8f\uff1a\u4f7f\u7528 wx:key \u63d0\u5347 wx:for \u7684\u6e32\u67d3\u6548\u7387"},"content":{"rendered":"<\/p>\n<p><\/p>\n<blockquote><p>\n  \u8fd9\u8fb9\u6587\u7ae0\u7684\u5185\u5bb9\u4e3b\u8981\u8bb2\u8ff0\u5728\u5c0f\u7a0b\u5e8f\u4e2d\u4f7f\u7528 wx:key \u63d0\u5347 wx:for \u7684\u6e32\u67d3\u6548\u7387\n<\/p><\/blockquote>\n<p>\u4e4b\u6240\u4ee5\u52a0\u4e0a wx:key \u4f1a\u63d0\u5347 wx:for \u7684\u6e32\u67d3\u6548\u7387\uff0c\u539f\u56e0\u662f\uff08\u6211\u7684\u521d\u6b65\u7406\u89e3\uff09<\/p>\n<ul>\n<li>\u5982\u679c\u4e0d\u52a0 wx:key, \u5728 setData \u4e4b\u540e\uff0c\u5982\u679c array \u5185\u7684\u6570\u636e\u5982\u679c\u53d1\u751f\u6539\u53d8\uff0c\u4f1a\u91cd\u65b0\u521b\u5efa\u524d\u7aef\u7684\u6e32\u67d3\u5bf9\u8c61<\/li>\n<li> <\/li>\n<li>\u52a0\u4e0a wx:key\uff0c\u91cd\u65b0\u6e32\u67d3\u65f6\uff0c\u53ea\u662f\u5c06\u5bf9\u5e94\u7684\u5bf9\u8c61\u91cd\u65b0\u6392\u5e8f\u3002\u672a\u53d1\u751f\u53d8\u5316\u7684\u5bf9\u8c61\uff0c\u4e0d\u4f1a\u91cd\u65b0\u521b\u5efa<\/li>\n<\/ul>\n<p>\u53c2\u8003\u5b98\u65b9\u7684\u89e3\u91ca<\/p>\n<blockquote>\n<p>\u5f53\u6570\u636e\u6539\u53d8\u89e6\u53d1\u6e32\u67d3\u5c42\u91cd\u65b0\u6e32\u67d3\u7684\u65f6\u5019\uff0c\u4f1a\u6821\u6b63\u5e26\u6709 key \u7684\u7ec4\u4ef6\uff0c\u6846\u67b6\u4f1a\u786e\u4fdd\u4ed6\u4eec\u88ab\u91cd\u65b0\u6392\u5e8f\uff0c\u800c\u4e0d\u662f\u91cd\u65b0\u521b\u5efa\uff0c\u4ee5\u786e\u4fdd\u4f7f\u7ec4\u4ef6\u4fdd\u6301\u81ea\u8eab\u7684\u72b6\u6001\uff0c\u5e76\u4e14\u63d0\u9ad8\u5217\u8868\u6e32\u67d3\u65f6\u7684\u6548\u7387\u3002<\/p>\n<\/blockquote>\n<p>\u9700\u8981\u9a8c\u8bc1\u7684\u95ee\u9898<\/p>\n<h2>\u52a0\u4e0a wx:key \u4e4b\u540e\uff0c\u4f1a\u6839\u636e\u7ed9\u5b9a\u7684 key \u8fdb\u884c\u6392\u5e8f\u4e48\uff1f<\/h2>\n<p>\u5199\u4e2a\u7b80\u5355\u7684\u6d4b\u8bd5\u9875\u9762<\/p>\n<pre>&lt;block&gt;\n&nbsp;&nbsp;&lt;text&gt;{{&nbsp;language.id&nbsp;}}&nbsp;.&nbsp;{{&nbsp;language.name&nbsp;}}&lt;\/text&gt;&lt;\/block&gt;\n\ndata:&nbsp;{\n&nbsp;&nbsp;languages:&nbsp;[\n&nbsp;&nbsp;&nbsp;&nbsp;{id:&nbsp;1,&nbsp;name:&nbsp;'php'},\n&nbsp;&nbsp;&nbsp;&nbsp;{id:&nbsp;4,&nbsp;name:&nbsp;'javascript'},\n&nbsp;&nbsp;&nbsp;&nbsp;{id:&nbsp;3,&nbsp;name:&nbsp;'golang'},\n&nbsp;&nbsp;&nbsp;&nbsp;{id:&nbsp;2,&nbsp;name:&nbsp;'python'},\n&nbsp;&nbsp;&nbsp;&nbsp;{id:&nbsp;5,&nbsp;name:&nbsp;'java'},\n&nbsp;&nbsp;],\n},<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/030\/7c374048b36c35be27ad0d6a5b393fb0-0.png\" title=\"\u5c0f\u7a0b\u5e8f\uff1a\u4f7f\u7528 wx:key \u63d0\u5347 wx:for \u7684\u6e32\u67d3\u6548\u7387\u63d2\u56fe\" alt=\"\u5c0f\u7a0b\u5e8f\uff1a\u4f7f\u7528 wx:key \u63d0\u5347 wx:for \u7684\u6e32\u67d3\u6548\u7387\u63d2\u56fe\" \/><\/p>\n<p>\u4ece\u6d4b\u8bd5\u7ed3\u679c\u6765\u770b\uff0c\u5e76\u4e0d\u4f1a\u5f71\u54cd\u5230\u6392\u5e8f\u3002<\/p>\n<h2>key \u91cd\u540d\u65f6\u662f\u5426\u4f1a\u62a5\u9519<\/h2>\n<pre>data:&nbsp;{\n&nbsp;&nbsp;languages:&nbsp;[\n&nbsp;&nbsp;&nbsp;&nbsp;{id:&nbsp;1,&nbsp;name:&nbsp;'php'},\n&nbsp;&nbsp;&nbsp;&nbsp;{id:&nbsp;4,&nbsp;name:&nbsp;'javascript'},\n&nbsp;&nbsp;&nbsp;&nbsp;{id:&nbsp;3,&nbsp;name:&nbsp;'golang'},\n&nbsp;&nbsp;&nbsp;&nbsp;{id:&nbsp;2,&nbsp;name:&nbsp;'python'},\n&nbsp;&nbsp;&nbsp;&nbsp;{id:&nbsp;5,&nbsp;name:&nbsp;'java'},\n&nbsp;&nbsp;],\n},\n\nclick:&nbsp;function&nbsp;()&nbsp;{\n\tlet&nbsp;language&nbsp;=&nbsp;{id:&nbsp;5,&nbsp;name:&nbsp;'kotlin'}\n\tlet&nbsp;languages&nbsp;=&nbsp;this.data.languages\n\tlanguages.push(language)\n\n\tthis.setData({\n\t\tlanguages:&nbsp;languages\n\t})\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u5f00\u53d1\u5de5\u5177\u53ea\u4f1a\u62a5\u4e00\u4e2a\u8b66\u544a\uff0c\u5e76\u4e0d\u4f1a\u5bfc\u81f4\u7a0b\u5e8f\u5d29\u6e83<\/p>\n<blockquote>\n<p>VM6265:2 Do not set same key {5} in wx:key<\/p>\n<\/blockquote>\n<p>\u6bd4\u8f83\u5947\u602a\u7684\u662f\uff0c\u8fd9\u4e2a\u8b66\u544a\u53ea\u6709\u5728\u91cd\u65b0\u6e32\u67d3\u65f6\u624d\u4f1a\u62a5\uff0c\u5982\u679c\u521d\u59cb\u5316\u65f6\u5c31\u4f7f\u7528\u540c\u6837\u7684 key\uff0c\u5e76\u4e0d\u4f1a\u5bfc\u81f4\u8b66\u544a\u3002<\/p>\n<p>\u76f8\u5173\u89c6\u9891\u8fde\u63a5:<\/p>\n<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5c0f\u7a0b\u5e8f\uff1a\u4f7f\u7528 wx:key \u63d0\u5347 wx:for \u7684\u6e32\u67d3\u6548\u7387\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>\u8fd9\u8fb9\u6587\u7ae0\u7684\u5185\u5bb9\u4e3b\u8981\u8bb2\u8ff0\u5728\u5c0f\u7a0b\u5e8f\u4e2d\u4f7f\u7528 wx:key \u63d0\u5347 wx:for \u7684\u6e32\u67d3\u6548\u7387 \u4e4b\u6240\u4ee5\u52a0\u4e0a wx:key \u4f1a\u63d0\u5347 wx:for \u7684\u6e32\u67d3\u6548\u7387\uff0c\u539f\u56e0\u662f\uff08\u6211\u7684\u521d\u6b65\u7406\u89e3\uff09 \u5982\u679c\u4e0d\u52a0 wx:key, \u5728 setData \u4e4b\u540e\uff0c\u5982\u679c array \u5185\u7684\u6570\u636e\u5982\u679c\u53d1\u751f\u6539\u53d8\uff0c\u4f1a\u91cd\u65b0\u521b\u5efa\u524d\u7aef\u7684\u6e32\u67d3\u5bf9\u8c61 \u52a0\u4e0a wx:key\uff0c\u91cd\u65b0\u6e32\u67d3\u65f6\uff0c\u53ea\u662f\u5c06\u5bf9\u5e94\u7684\u5bf9\u8c61\u91cd\u65b0\u6392\u5e8f\u3002\u672a\u53d1\u751f\u53d8\u5316\u7684\u5bf9\u8c61\uff0c\u4e0d\u4f1a\u91cd\u65b0\u521b\u5efa \u53c2\u8003\u5b98\u65b9\u7684\u89e3\u91ca \u5f53\u6570\u636e\u6539\u53d8\u89e6\u53d1\u6e32\u67d3\u5c42\u91cd\u65b0\u6e32\u67d3\u7684\u65f6\u5019\uff0c\u4f1a\u6821\u6b63\u5e26\u6709 key \u7684\u7ec4\u4ef6\uff0c\u6846\u67b6\u4f1a\u786e\u4fdd\u4ed6\u4eec\u88ab\u91cd\u65b0\u6392\u5e8f\uff0c\u800c\u4e0d\u662f\u91cd\u65b0\u521b\u5efa\uff0c\u4ee5\u786e\u4fdd\u4f7f\u7ec4\u4ef6\u4fdd\u6301\u81ea\u8eab\u7684\u72b6\u6001\uff0c\u5e76\u4e14\u63d0\u9ad8\u5217\u8868\u6e32\u67d3\u65f6\u7684\u6548\u7387\u3002 \u9700\u8981\u9a8c\u8bc1\u7684\u95ee\u9898 \u52a0\u4e0a wx:key \u4e4b\u540e\uff0c\u4f1a\u6839\u636e\u7ed9\u5b9a\u7684 key \u8fdb\u884c\u6392\u5e8f\u4e48\uff1f \u5199\u4e2a\u7b80\u5355\u7684\u6d4b\u8bd5\u9875\u9762 &lt;block&gt; &nbsp;&nbsp;&lt;text&gt;{{&nbsp;language.id&nbsp;}}&nbsp;.&nbsp;{{&nbsp;language.name&nbsp;}}&lt;\/text&gt;&lt;\/block&gt; data:&nbsp;{ &nbsp;&nbsp;languages:&nbsp;[ &nbsp;&nbsp;&nbsp;&nbsp;{id:&nbsp;1,&nbsp;name:&nbsp;&#8216;php&#8217;}, &nbsp;&nbsp;&nbsp;&nbsp;{id:&nbsp;4,&nbsp;name:&nbsp;&#8216;javascript&#8217;}, &nbsp;&nbsp;&nbsp;&nbsp;{id:&nbsp;3,&nbsp;name:&nbsp;&#8216;golang&#8217;}, &nbsp;&nbsp;&nbsp;&nbsp;{id:&nbsp;2,&nbsp;name:&nbsp;&#8216;python&#8217;}, &nbsp;&nbsp;&nbsp;&nbsp;{id:&nbsp;5,&nbsp;name:&nbsp;&#8216;java&#8217;}, &nbsp;&nbsp;], }, \u767b\u5f55\u540e\u590d\u5236 \u4ece\u6d4b\u8bd5\u7ed3\u679c\u6765\u770b\uff0c\u5e76\u4e0d\u4f1a\u5f71\u54cd\u5230\u6392\u5e8f\u3002 key \u91cd\u540d\u65f6\u662f\u5426\u4f1a\u62a5\u9519 data:&nbsp;{ &nbsp;&nbsp;languages:&nbsp;[ &nbsp;&nbsp;&nbsp;&nbsp;{id:&nbsp;1,&nbsp;name:&nbsp;&#8216;php&#8217;}, &nbsp;&nbsp;&nbsp;&nbsp;{id:&nbsp;4,&nbsp;name:&nbsp;&#8216;javascript&#8217;}, &nbsp;&nbsp;&nbsp;&nbsp;{id:&nbsp;3,&nbsp;name:&nbsp;&#8216;golang&#8217;}, &nbsp;&nbsp;&nbsp;&nbsp;{id:&nbsp;2,&nbsp;name:&nbsp;&#8216;python&#8217;}, &nbsp;&nbsp;&nbsp;&nbsp;{id:&nbsp;5,&nbsp;name:&nbsp;&#8216;java&#8217;}, &nbsp;&nbsp;], }, click:&nbsp;function&nbsp;()&nbsp;{ [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"class_list":["post-32551","post","type-post","status-publish","format-standard","hentry","category-19"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/32551","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=32551"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/32551\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=32551"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=32551"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=32551"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}