{"id":34098,"date":"2024-11-25T08:04:24","date_gmt":"2024-11-25T00:04:24","guid":{"rendered":"https:\/\/fwq.ai\/blog\/34098\/"},"modified":"2024-11-25T08:04:24","modified_gmt":"2024-11-25T00:04:24","slug":"%e6%b5%85%e6%9e%90%e5%b0%8f%e7%a8%8b%e5%ba%8f%e4%b8%ad%e7%9a%84%e6%8f%92%e6%a7%bd%e3%80%81%e7%88%b6%e5%ad%90%e7%bb%84%e4%bb%b6%e9%80%9a%e8%ae%af%e7%9a%84%e5%87%a0%e7%a7%8d%e6%96%b9%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/34098\/","title":{"rendered":"\u6d45\u6790\u5c0f\u7a0b\u5e8f\u4e2d\u7684\u63d2\u69fd\u3001\u7236\u5b50\u7ec4\u4ef6\u901a\u8baf\u7684\u51e0\u79cd\u65b9\u5f0f"},"content":{"rendered":"<p>\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u4e00\u4e0b\u5c0f\u7a0b\u5e8f\u4e2d\u7684\u63d2\u69fd\u3001\u7236\u5b50\u7ec4\u4ef6\u901a\u8baf\u7684\u51e0\u79cd\u65b9\u5f0f\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/024\/61809a961a8dd930.jpg\" class=\"aligncenter\" title=\"\u6d45\u6790\u5c0f\u7a0b\u5e8f\u4e2d\u7684\u63d2\u69fd\u3001\u7236\u5b50\u7ec4\u4ef6\u901a\u8baf\u7684\u51e0\u79cd\u65b9\u5f0f\u63d2\u56fe\" alt=\"\u6d45\u6790\u5c0f\u7a0b\u5e8f\u4e2d\u7684\u63d2\u69fd\u3001\u7236\u5b50\u7ec4\u4ef6\u901a\u8baf\u7684\u51e0\u79cd\u65b9\u5f0f\u63d2\u56fe\" \/><\/p>\n<p>\u4eca\u5929\u6211\u4eec\u4e00\u8d77\u770b\u4e00\u4e0b\u5c0f\u7a0b\u5e8f\u4e2d\u7684\u63d2\u69fd\u548c\u7236\u5b50\u7ec4\u4ef6\u76f8\u4e92\u901a\u8baf\u65b9\u9762\u7684\u5185\u5bb9\uff0c\u6765\u770b\u4e00\u4e0b\u548cvue\u6709\u4ec0\u4e48\u6837\u7684\u533a\u522b\uff1f\u3010\u76f8\u5173\u5b66\u4e60\u63a8\u8350\uff1a\u3011<\/p>\n<h2><strong>\u4e00\u3001\u63d2\u69fd<\/strong><\/h2>\n<p><span style=\"font-size: 16px\"><strong>1. \u4ec0\u4e48\u662f\u63d2\u69fd\uff1f<\/strong><\/span><\/p>\n<p>\u5728\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u7684 wxml \u7ed3\u6784\u4e2d\uff0c\u53ef\u4ee5\u63d0\u4f9b\u4e00\u4e2a \u8282\u70b9\uff08\u63d2\u69fd\uff09\uff0c\u7528\u4e8e\u627f\u8f7d\u7ec4\u4ef6\u4f7f\u7528\u8005\u63d0\u4f9b\u7684 wxml \u7ed3\u6784<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/image\/578\/865\/189\/1635817685891354.png\" class=\"aligncenter\" title=\"\u6d45\u6790\u5c0f\u7a0b\u5e8f\u4e2d\u7684\u63d2\u69fd\u3001\u7236\u5b50\u7ec4\u4ef6\u901a\u8baf\u7684\u51e0\u79cd\u65b9\u5f0f\u63d2\u56fe1\" alt=\"\u6d45\u6790\u5c0f\u7a0b\u5e8f\u4e2d\u7684\u63d2\u69fd\u3001\u7236\u5b50\u7ec4\u4ef6\u901a\u8baf\u7684\u51e0\u79cd\u65b9\u5f0f\u63d2\u56fe1\" \/><\/p>\n<p>\u5176\u5b9e\u63d2\u69fd, \u8bf4\u7684\u901a\u4fd7\u4e00\u4e9b, \u5c31\u662f \u5b50\u7ec4\u4ef6\u6316\u5751\uff0c\u7236\u7ec4\u4ef6\u586b\u5751 \u7684\u8fc7\u7a0b\u3002\u7531\u7236\u7ec4\u4ef6\u5728\u4f7f\u7528\u5b50\u7ec4\u4ef6\u7684\u65f6\u5019, \u51b3\u5b9a\u5b50\u7ec4\u4ef6\u5185\u90e8\u7684\u67d0\u4e00\u4e9b\u5e03\u5c40\u5c55\u793a<\/p>\n<ul>\n<li>\u5b50\u7ec4\u4ef6\u901a\u8fc7\u6316\u5751<\/li>\n<li>\u7236\u7ec4\u4ef6\u901a\u8fc7\u7ec4\u4ef6\u6807\u7b7e\u4e2d\u95f4\u7684\u5185\u5bb9\u6765\u586b\u5751<\/li>\n<\/ul>\n<p><strong><span style=\"font-size: 16px\">2. \u5355\u4e2a\u63d2\u69fd<\/span><\/strong><\/p>\n<p>\u5728\u5c0f\u7a0b\u5e8f\u4e2d\uff0c\u9ed8\u8ba4\u6bcf\u4e2a\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u4e2d\u53ea\u5141\u8bb8\u4f7f\u7528\u4e00\u4e2a &nbsp;slot \u5360\u4f4d\uff0c\u8fd9\u79cd\u4e2a\u6570\u4e0a\u7684\u9650\u5236\u53eb\u505a\u5355\u4e2a\u63d2\u69fd<\/p>\n<ul>\n<li>\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u4e00\u4e2a\u7ec4\u4ef6\u7684 wxml \u4e2d\u53ea\u80fd\u6709\u4e00\u4e2a slot<\/li>\n<li>\u9700\u8981\u4f7f\u7528\u591a slot \u65f6\uff0c\u53ef\u4ee5\u5728\u7ec4\u4ef6 js \u4e2d\u58f0\u660e\u542f\u7528<\/li>\n<li> <strong>\u6ce8\u610f<\/strong>\uff1a\u5c0f\u7a0b\u5e8f\u4e2d\u76ee\u524d\u53ea\u6709\u9ed8\u8ba4\u63d2\u69fd\u548c\u591a\u4e2a\u63d2\u69fd\uff0c\u6682\u4e0d\u652f\u6301\u4f5c\u7528\u57df\u63d2\u69fd<\/li>\n<\/ul>\n<p>\u4ee3\u7801\u5982\u4e0b\uff08\u793a\u4f8b\uff09\uff1a<\/p>\n<pre>&lt;!-- \u7ec4\u4ef6\u7684\u5c01\u88c5\u8005 --&gt;\n&lt;view&gt;\n&nbsp;&nbsp;&lt;view&gt;\u8fd9\u91cc\u662f\u7ec4\u4ef6\u7684\u5185\u90e8\u8282\u70b9&lt;\/view&gt;\n&nbsp;&nbsp;&lt;!-- \u5bf9\u4e8e\u4e0d\u786e\u5b9a\u7684\u5185\u5bb9\uff0c\u53ef\u4ee5\u4f7f\u7528&lt;slot&gt;\u8fdb\u884c\u5360\u4f4d\uff0c\u5177\u4f53\u7684\u5185\u5bb9\u7531\u7ec4\u4ef6\u7684\u4f7f\u7528\u8005\u51b3\u5b9a --&gt;\n&nbsp;&nbsp;&lt;slot&gt;&lt;\/slot&gt;&lt;\/view&gt;&lt;!-- \u7ec4\u4ef6\u7684\u4f7f\u7528\u8005 --&gt;&lt;component-tag-name&gt;\n&nbsp;&nbsp;&lt;!-- \u8fd9\u90e8\u5206\u5185\u5bb9\u5c06\u88ab\u653e\u7f6e\u5728\u7ec4\u4ef6&lt;slot&gt;\u7684\u4f4d\u7f6e\u4e0a --&gt;\n&nbsp;&nbsp;&lt;view&gt;\u8fd9\u91cc\u662f\u63d2\u5165\u5230\u7ec4\u4ef6slot\u7684\u5185\u5bb9&lt;\/view&gt;&lt;\/component-tag-name&gt;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong><span style=\"font-size: 16px\">3. \u542f\u52a8\u591a\u4e2a\u63d2\u69fd<\/span><\/strong><\/p>\n<p>\u5728\u5c0f\u7a0b\u5e8f\u7684\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u4e2d\uff0c\u9700\u8981\u4f7f\u7528\u591a \u63d2\u69fd\u65f6\uff0c\u53ef\u4ee5\u5728\u7ec4\u4ef6\u7684 .js \u6587\u4ef6\u4e2d<\/p>\n<p>\u4ee3\u7801\u5982\u4e0b\uff08\u793a\u4f8b\uff09\uff1a<\/p>\n<pre>Component({\n&nbsp;&nbsp;options:&nbsp;{\n&nbsp;&nbsp;&nbsp;&nbsp;multipleSlots:&nbsp;true&nbsp;\/\/&nbsp;\u5728\u7ec4\u4ef6\u5b9a\u4e49\u65f6\u7684\u9009\u9879\u4e2d\u542f\u7528\u591a&nbsp;slot&nbsp;\u652f\u6301\n&nbsp;&nbsp;}\uff0c\n&nbsp;&nbsp;properties:&nbsp;{&nbsp;\/*&nbsp;...&nbsp;*\/&nbsp;},\n&nbsp;&nbsp;methods:&nbsp;{&nbsp;\/*&nbsp;...&nbsp;*\/&nbsp;}\n})<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong><span style=\"font-size: 16px\">4. \u5b9a\u4e49\u591a\u4e2a\u63d2\u69fd<\/span><\/strong><\/p>\n<p>\u53ef\u4ee5\u5728\u7ec4\u4ef6\u7684 .wxml \u4e2d\u4f7f\u7528\u591a\u4e2a \u6807\u7b7e\uff0c\u4ee5\u4e0d\u540c\u7684 name \u6765\u533a\u5206\u4e0d\u540c\u7684\u63d2\u69fd<\/p>\n<p>\u4ee3\u7801\u5982\u4e0b\uff08\u793a\u4f8b\uff09\uff1a<\/p>\n<pre>&lt;!-- \u7ec4\u4ef6\u6a21\u677f --&gt;\n&lt;view&gt;\n&nbsp;&nbsp;&lt;!-- name \u4e3a before \u7684\u7b2c\u4e00\u4e2a slot \u63d2\u69fd --&gt;\n&nbsp;&nbsp;&lt;slot&gt;&lt;\/slot&gt;\n&nbsp;&nbsp;&lt;view&gt;\u8fd9\u662f\u4e00\u6bb5\u56fa\u5b9a\u7684\u6587\u672c\u5185\u5bb9&lt;\/view&gt;\n&nbsp;&nbsp;&lt;!-- name \u4e3a after \u7684\u7b2c\u4e8c\u4e2a slot \u63d2\u69fd --&gt;\n&nbsp;&nbsp;&lt;slot&gt;&lt;\/slot&gt;&lt;\/view&gt;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<h2><strong>\u4e8c\u3001\u7236\u5b50\u7ec4\u4ef6\u901a\u8baf<\/strong><\/h2>\n<p><strong><span style=\"font-size: 16px\">1. &nbsp;\u7236\u5b50\u7ec4\u4ef6\u901a\u8baf\u65b9\u5f0f<\/span><\/strong><\/p>\n<ul>\n<li>\n<p>\u5c5e\u6027\u7ed1\u5b9a \u7528\u4e8e\u7236\u7ec4\u4ef6\u5411\u5b50\u7ec4\u4ef6\u7684\u6307\u5b9a\u5c5e\u6027\u8bbe\u7f6e\u6570\u636e\uff0c\u4ec5\u80fd\u8bbe\u7f6e JSON \u517c\u5bb9\u7684\u6570\u636e(\u53ea\u80fd\u4f20\u9012\u6570\u636e\uff0c\u4e0d\u80fd\u4f20\u9012\u65b9\u6cd5)<\/p>\n<\/li>\n<li>\n<p>\u4e8b\u4ef6\u7ed1\u5b9a \u7528\u4e8e\u5b50\u7ec4\u4ef6\u5411\u7236\u7ec4\u4ef6\u4f20\u9012\u6570\u636e\uff0c\u53ef\u4ee5\u4f20\u9012\u4efb\u610f\u6570\u636e(\u5305\u62ec\u6570\u7ec4\u548c\u65b9\u6cd5)<\/p>\n<\/li>\n<li>\n<p>\u83b7\u53d6\u7ec4\u4ef6\u5b9e\u4f8b \u7236\u7ec4\u4ef6\u8fd8\u53ef\u4ee5\u901a\u8fc7 this.selectComponent() \u83b7\u53d6\u5b50\u7ec4\u4ef6\u5b9e\u4f8b\u5bf9\u8c61\u8fd9\u6837\u5c31\u53ef\u4ee5\u76f4\u63a5\u8bbf\u95ee\u5b50\u7ec4\u4ef6\u7684\u4efb\u610f\u6570\u636e\u548c\u65b9\u6cd5<\/p>\n<\/li>\n<\/ul>\n<p><strong><span style=\"font-size: 16px\">2. \u5c5e\u6027\u7ed1\u5b9a<\/span><\/strong><\/p>\n<ul>\n<li>\u4f20\u9012\u6570\u636e \u5c5e\u6027\u7ed1\u5b9a\u7528\u4e8e\u5b9e\u73b0\u7236\u5411\u5b50\u4f20\u503c\uff0c\u800c\u4e14\u53ea\u80fd\u4f20\u9012\u666e\u901a\u7c7b\u578b\u7684\u6570\u636e\uff0c\u65e0\u6cd5\u5c06\u65b9\u6cd5\u4f20\u9012\u7ed9\u5b50\u7ec4\u4ef6<\/li>\n<\/ul>\n<p>\u4ee3\u7801\u5982\u4e0b\uff08\u793a\u4f8b\uff09\uff1a<\/p>\n<pre>\/\/&nbsp;\u7236\u7ec4\u4ef6\u7684&nbsp;data&nbsp;\u8282\u70b9\ndata:&nbsp;{\n&nbsp;&nbsp;count:&nbsp;0\n}\n\n\/\/&nbsp;\u7236\u7ec4\u4ef6\u7684wxml&nbsp;\u7ed3\u6784\n&lt;my-test3&gt;&lt;\/my-test3&gt;&lt;view&gt;~~&lt;\/view&gt;&lt;view&gt;\u7236\u7ec4\u4ef6\u4e2d\uff0ccount\u503c\u4e3a\uff1a{{count}}&lt;\/view&gt;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li>\u63a5\u53d7\u6570\u636e<\/li>\n<\/ul>\n<p>\u5b50\u7ec4\u4ef6\u5728 &nbsp;properties \u8282\u70b9\u4e2d\u58f0\u660e\u5bf9\u5e94\u7684\u5c5e\u6027\u5e76\u4f7f\u7528 \u4ee3\u7801\u5982\u4e0b\uff08\u793a\u4f8b\uff09\uff1a<\/p>\n<pre>\/\/&nbsp;\u5b50\u7ec4\u4ef6\u7684&nbsp;properties&nbsp;\u8282\u70b9\nproperties:&nbsp;{\n&nbsp;&nbsp;count:&nbsp;Number\n}\n\n\/\/&nbsp;\u5b50\u7ec4\u4ef6\u7684&nbsp;wxml&nbsp;\u7ed3\u6784\n&lt;text&gt;\u5b50\u7ec4\u4ef6\u4e2d\uff0ccount\u503c\u4e3a\uff1a{{count}}&lt;\/text&gt;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong><span style=\"font-size: 16px\">3. \u4e8b\u4ef6\u7ed1\u5b9a\u7684\u6838\u5fc3\u5b9e\u73b0\u6b65\u9aa4<\/span><\/strong><\/p>\n<p>\u4e8b\u4ef6\u7ed1\u5b9a\u7528\u4e8e\u5b9e\u73b0\u5b50\u5411\u7236\u4f20\u503c\uff0c\u53ef\u4ee5\u4f20\u9012\u4efb\u4f55\u7c7b\u578b\u7684\u6570\u636e\u3002\u4f7f\u7528\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\u5728 \u7236\u7ec4\u4ef6 \u7684 js \u4e2d\uff0c\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\uff0c\u8fd9\u4e2a\u51fd\u6570\u5373\u5c06\u901a\u8fc7\u81ea\u5b9a\u4e49\u4e8b\u4ef6\u7684\u5f62\u5f0f\uff0c\u4f20\u9012\u7ed9\u5b50\u7ec4\u4ef6<\/li>\n<li>\u5728 \u7236\u7ec4\u4ef6 \u7684 wxml \u4e2d\uff0c\u901a\u8fc7\u81ea\u5b9a\u4e49\u4e8b\u4ef6\u7684\u5f62\u5f0f\uff0c\u5c06\u6b65\u9aa4 1 \u4e2d\u5b9a\u4e49\u7684\u51fd\u6570\u5f15\u7528\uff0c\u4f20\u9012\u7ed9\u5b50\u7ec4\u4ef6<\/li>\n<li>\u5728 \u5b50\u7ec4\u4ef6\u7684 js \u4e2d\uff0c\u901a\u8fc7\u8c03\u7528 this.triggerEvent(&#8216;\u81ea\u5b9a\u4e49\u4e8b\u4ef6\u540d\u79f0&#8217;, {\/* \u53c2\u6570\u5bf9\u8c61 *\/})\uff0c\u5c06\u6570\u636e\u53d1\u9001\u5230\u7236\u7ec4\u4ef6<\/li>\n<li>\u5728\u7236\u7ec4\u4ef6\u7684 js \u4e2d\uff0c\u901a\u8fc7 e.detail \u83b7\u53d6\u5230\u5b50\u7ec4\u4ef6\u4f20\u9012\u8fc7\u6765\u7684\u6570\u636e<\/li>\n<\/ul>\n<p><strong><span style=\"font-size: 16px\">4. \u4e8b\u4ef6\u7ed1\u5b9a\u7684\u6838\u5fc3\u5b9e\u73b0\u4ee3\u7801<\/span><\/strong><\/p>\n<ul>\n<li>\u6b65\u9aa41\uff1a \u5728\u7236\u7ec4\u4ef6\u7684 js \u4e2d\uff0c\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\uff0c\u8fd9\u4e2a\u51fd\u6570\u5373\u5c06\u901a\u8fc7\u81ea\u5b9a\u4e49\u4e8b\u4ef6\u7684\u5f62\u5f0f\uff0c\u4f20\u9012\u7ed9\u5b50\u7ec4\u4ef6<\/li>\n<\/ul>\n<p>\u4ee3\u7801\u5982\u4e0b\uff08\u793a\u4f8b\uff09\uff1a<\/p>\n<pre>\/\/&nbsp;\u7236\u7ec4\u4ef6\u4e2d\u5b9a\u4e49&nbsp;syncCount&nbsp;\u65b9\u6cd5\n\/\/&nbsp;\u5c06\u6765\uff0c\u8fd9\u4e2a\u65b9\u6cd5\u4f1a\u88ab\u4f20\u9012\u7ed9\u5b50\u7ec4\u4ef6\uff0c\u4f9b\u5b50\u7ec4\u4ef6\u8fdb\u884c\u8c03\u7528\nsyncCount()&nbsp;{\n&nbsp;&nbsp;console.log('syncCount')\n},<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li>\u6b65\u9aa4 2\uff1a\u5728\u7236\u7ec4\u4ef6\u7684 wxml \u4e2d\uff0c\u901a\u8fc7\u81ea\u5b9a\u4e49\u4e8b\u4ef6\u7684\u5f62\u5f0f\uff0c\u5c06 \u6b65\u9aa4 1 \u4e2d\u5b9a\u4e49\u7684\u51fd\u6570\u5f15\u7528\uff0c\u4f20\u9012\u7ed9\u5b50\u7ec4\u4ef6<\/li>\n<\/ul>\n<p>\u4ee3\u7801\u5982\u4e0b\uff08\u793a\u4f8b\uff09\uff1a<\/p>\n<pre>&lt;!-- \u4f7f\u7528 bind: \u81ea\u5b9a\u4e49\u4e8b\u4ef6\u540d\u79f0(\u63a8\u8350\uff1a\u7ed3\u6784\u6e05\u6670) --&gt;\n&lt;my-test3&gt;&lt;\/my-test3&gt;&lt;!-- \u6216\u5728 bind \u540e\u9762\u76f4\u63a5\u534f\u5546\u81ea\u5b9a\u4e49\u4e8b\u4ef6\u540d\u79f0 --&gt;&lt;my-test3&gt;&lt;\/my-test3&gt;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li>\u6b65\u9aa4 3\uff1a\u5728 \u5b50\u7ec4\u4ef6\u7684 js \u4e2d\uff0c\u901a\u8fc7\u8c03\u7528 this.triggerEvent(&#8216;\u81ea\u5b9a\u4e49\u4e8b\u4ef6\u540d\u79f0&#8217;, {\/* \u53c2\u6570\u5bf9\u8c61 *\/})\uff0c\u5c06\u6570\u636e\u53d1\u9001\u5230\u7236\u7ec4\u4ef6<\/li>\n<\/ul>\n<p>\u4ee3\u7801\u5982\u4e0b\uff08\u793a\u4f8b\uff09\uff1a<\/p>\n<pre>\/\/&nbsp;\u5b50\u7ec4\u4ef6\u7684wxml\u7ed3\u6784\n&lt;text&gt;\u5b50\u7ec4\u4ef6\u4e2d\uff0ccount\u503c\u4e3a\uff1a{{count}}&lt;\/text&gt;&lt;button&gt;+1&lt;\/button&gt;\n\n\/\/&nbsp;\u5b50\u7ec4\u4ef6\u4e2d\u7684&nbsp;js&nbsp;\u4ee3\u7801\nmethods:&nbsp;{\n&nbsp;&nbsp;addCount()&nbsp;{\n&nbsp;&nbsp;&nbsp;&nbsp;this.setData({\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;count:&nbsp;this.properties.count&nbsp;+&nbsp;1\n&nbsp;&nbsp;&nbsp;&nbsp;})\n&nbsp;&nbsp;&nbsp;&nbsp;this.triggerEvent('sync',&nbsp;{value:&nbsp;this.properties.count})\n&nbsp;&nbsp;}\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li>\u6b65\u9aa4 4\uff1a\u5728\u7236\u7ec4\u4ef6\u7684 js \u4e2d\uff0c\u901a\u8fc7 e.detail \u83b7\u53d6\u5230\u5b50\u7ec4\u4ef6\u4f20\u9012\u8fc7\u6765\u7684\u6570\u636e<\/li>\n<\/ul>\n<p>\u4ee3\u7801\u5982\u4e0b\uff08\u793a\u4f8b\uff09\uff1a<\/p>\n<pre>syncCount(e)&nbsp;{\n&nbsp;&nbsp;\/\/&nbsp;console.log(e.detail.value)\n&nbsp;&nbsp;this.setData({\n&nbsp;&nbsp;&nbsp;&nbsp;count:&nbsp;e.detail.value\n&nbsp;&nbsp;})\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong><span style=\"font-size: 16px\">5. \u4f7f\u7528 selectComponent \u83b7\u53d6\u7ec4\u4ef6\u5b9e\u4f8b<\/span><\/strong><\/p>\n<p>\u7236\u7ec4\u4ef6\u5982\u4f55\u83b7\u5f97\u5b50\u7ec4\u4ef6\u5b9e\u4f8b\uff1f<\/p>\n<p>\u53ef\u5728\u7236\u7ec4\u4ef6\u91cc\u8c03\u7528 &nbsp;this.selectComponent(&#8220;id\u6216class\u9009\u62e9\u5668&#8221;)\uff0c\u83b7\u53d6\u5b50\u7ec4\u4ef6\u7684\u5b9e\u4f8b\u5bf9\u8c61\uff0c\u4ece\u800c\u76f4\u63a5\u8bbf\u95ee\u5b50\u7ec4\u4ef6\u7684\u4efb\u610f\u6570\u636e\u548c\u65b9\u6cd5\u3002\u8c03\u7528\u65f6\u9700\u8981\u4f20\u5165\u4e00\u4e2a\u9009\u62e9\u5668\uff0c\u4f8b\u5982 &nbsp;this.selectComponent(&#8220;.my-component&#8221;)<\/p>\n<p>\u4ee3\u7801\u5982\u4e0b\uff08\u793a\u4f8b\uff09\uff1a<\/p>\n<pre>\/\/&nbsp;wxml\u7ed3\u6784\n&lt;my-test3&gt;&lt;\/my-test3&gt;&lt;button&gt;\u83b7\u53d6\u5b50\u7ec4\u4ef6\u5b9e\u4f8b&lt;\/button&gt;\n\ngetChild()&nbsp;{&nbsp;\/\/&nbsp;\u6309\u94ae\u7684tap\u4e8b\u4ef6\u5904\u7406\u51fd\u6570\n&nbsp;&nbsp;\/\/&nbsp;\u5207\u8bb0\u4e0b\u9762\u53c2\u6570\u4e0d\u80fd\u4f20\u9012\u6807\u7b7e\u9009\u62e9\u5668&nbsp;'my-test3',\u4e0d\u7136\u8fd4\u56de\u7684\u662f&nbsp;null\n&nbsp;&nbsp;const&nbsp;child&nbsp;=&nbsp;this.selectComponent('.customA')&nbsp;\/\/&nbsp;\u4e5f\u53ef\u4ee5\u4f20\u9012&nbsp;id&nbsp;\u9009\u62e9\u5668&nbsp;#cA\n&nbsp;&nbsp;child.setData({&nbsp;count:&nbsp;child.properties.count&nbsp;+&nbsp;1&nbsp;})&nbsp;\/\/&nbsp;\u8c03\u7528\u5b50\u7ec4\u4ef6\u7684&nbsp;setData&nbsp;\u65b9\u6cd5\n&nbsp;&nbsp;child.addCount()&nbsp;\/\/&nbsp;\u8c03\u7528\u5b50\u7ec4\u4ef6\u7684&nbsp;addCount&nbsp;\u65b9\u6cd5&nbsp;\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u66f4\u591a\u7f16\u7a0b\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u8bbf\u95ee\uff1a\uff01\uff01<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u6d45\u6790\u5c0f\u7a0b\u5e8f\u4e2d\u7684\u63d2\u69fd\u3001\u7236\u5b50\u7ec4\u4ef6\u901a\u8baf\u7684\u51e0\u79cd\u65b9\u5f0f\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>\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u4e00\u4e0b\u5c0f\u7a0b\u5e8f\u4e2d\u7684\u63d2\u69fd\u3001\u7236\u5b50\u7ec4\u4ef6\u901a\u8baf\u7684\u51e0\u79cd\u65b9\u5f0f\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u6709\u6240\u5e2e\u52a9\uff01 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\u5b50\u7ec4\u4ef6\u901a\u8fc7\u6316\u5751 \u7236\u7ec4\u4ef6\u901a\u8fc7\u7ec4\u4ef6\u6807\u7b7e\u4e2d\u95f4\u7684\u5185\u5bb9\u6765\u586b\u5751 2. \u5355\u4e2a\u63d2\u69fd \u5728\u5c0f\u7a0b\u5e8f\u4e2d\uff0c\u9ed8\u8ba4\u6bcf\u4e2a\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u4e2d\u53ea\u5141\u8bb8\u4f7f\u7528\u4e00\u4e2a &nbsp;slot \u5360\u4f4d\uff0c\u8fd9\u79cd\u4e2a\u6570\u4e0a\u7684\u9650\u5236\u53eb\u505a\u5355\u4e2a\u63d2\u69fd \u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u4e00\u4e2a\u7ec4\u4ef6\u7684 wxml \u4e2d\u53ea\u80fd\u6709\u4e00\u4e2a slot \u9700\u8981\u4f7f\u7528\u591a slot \u65f6\uff0c\u53ef\u4ee5\u5728\u7ec4\u4ef6 js \u4e2d\u58f0\u660e\u542f\u7528 \u6ce8\u610f\uff1a\u5c0f\u7a0b\u5e8f\u4e2d\u76ee\u524d\u53ea\u6709\u9ed8\u8ba4\u63d2\u69fd\u548c\u591a\u4e2a\u63d2\u69fd\uff0c\u6682\u4e0d\u652f\u6301\u4f5c\u7528\u57df\u63d2\u69fd \u4ee3\u7801\u5982\u4e0b\uff08\u793a\u4f8b\uff09\uff1a &lt;!&#8211; \u7ec4\u4ef6\u7684\u5c01\u88c5\u8005 &#8211;&gt; &lt;view&gt; &nbsp;&nbsp;&lt;view&gt;\u8fd9\u91cc\u662f\u7ec4\u4ef6\u7684\u5185\u90e8\u8282\u70b9&lt;\/view&gt; &nbsp;&nbsp;&lt;!&#8211; \u5bf9\u4e8e\u4e0d\u786e\u5b9a\u7684\u5185\u5bb9\uff0c\u53ef\u4ee5\u4f7f\u7528&lt;slot&gt;\u8fdb\u884c\u5360\u4f4d\uff0c\u5177\u4f53\u7684\u5185\u5bb9\u7531\u7ec4\u4ef6\u7684\u4f7f\u7528\u8005\u51b3\u5b9a &#8211;&gt; &nbsp;&nbsp;&lt;slot&gt;&lt;\/slot&gt;&lt;\/view&gt;&lt;!&#8211; \u7ec4\u4ef6\u7684\u4f7f\u7528\u8005 &#8211;&gt;&lt;component-tag-name&gt; &nbsp;&nbsp;&lt;!&#8211; \u8fd9\u90e8\u5206\u5185\u5bb9\u5c06\u88ab\u653e\u7f6e\u5728\u7ec4\u4ef6&lt;slot&gt;\u7684\u4f4d\u7f6e\u4e0a &#8211;&gt; &nbsp;&nbsp;&lt;view&gt;\u8fd9\u91cc\u662f\u63d2\u5165\u5230\u7ec4\u4ef6slot\u7684\u5185\u5bb9&lt;\/view&gt;&lt;\/component-tag-name&gt; \u767b\u5f55\u540e\u590d\u5236 3. \u542f\u52a8\u591a\u4e2a\u63d2\u69fd \u5728\u5c0f\u7a0b\u5e8f\u7684\u81ea\u5b9a\u4e49\u7ec4\u4ef6\u4e2d\uff0c\u9700\u8981\u4f7f\u7528\u591a \u63d2\u69fd\u65f6\uff0c\u53ef\u4ee5\u5728\u7ec4\u4ef6\u7684 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