{"id":31401,"date":"2024-11-25T09:07:18","date_gmt":"2024-11-25T01:07:18","guid":{"rendered":"https:\/\/fwq.ai\/blog\/31401\/"},"modified":"2024-11-25T09:07:18","modified_gmt":"2024-11-25T01:07:18","slug":"%e5%be%ae%e4%bf%a1%e5%b0%8f%e7%a8%8b%e5%ba%8f%e6%80%8e%e4%b9%88%e5%ae%9e%e7%8e%b0%e6%95%b0%e6%8d%ae%e5%8f%8c%e5%90%91%e7%bb%91%e5%ae%9a","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/31401\/","title":{"rendered":"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u600e\u4e48\u5b9e\u73b0\u6570\u636e\u53cc\u5411\u7ed1\u5b9a"},"content":{"rendered":"
\n

\u5728\u539f\u751f\u5c0f\u7a0b\u5e8f\u5f00\u53d1\u4e2d\uff0c\u6570\u636e\u6d41\u662f\u5355\u5411\u7684\uff0c\u65e0\u6cd5\u53cc\u5411\u7ed1\u5b9a\uff0c\u4f46\u662f\u8981\u5b9e\u73b0\u53cc\u5411\u7ed1\u5b9a\u7684\u529f\u80fd\u8fd8\u662f\u86ee\u7b80\u5355\u7684\uff01<\/p>\n<\/blockquote>\n

\u4e0b\u6587\u8981\u8bb2\u7684\u662f\u5c0f\u7a0b\u5e8f\u6846\u67b6 minapp \u4e2d\u5b9e\u73b0\u53cc\u5411\u7ed1\u5b9a\u7684\u539f\u7406\uff0c\u5728 minapp \u4e2d\uff0c\u4f60\u53ea\u9700\u8981\u5728 wxml \u6a21\u677f\u4e2d\u7ed9\u7ec4\u4ef6\u7684\u5c5e\u6027\u540d\u540e\u52a0\u4e0a .sync \u5c31\u53ef\u4ee5\u5b9e\u73b0\u53cc\u5411\u7ed1\u5b9a\u3002\u4e0b\u9762\u4e3a\u4e86\u89e3\u91ca\u5176\u539f\u7406\uff0c\u8fc7\u7a0b\u53ef\u80fd\u4f1a\u8bf4\u7684\u7a0d\u5fae\u590d\u6742\u4e9b\uff0c\u4f46\u5176\u5b9e minapp \u6846\u67b6\u5df2\u7ecf\u5904\u7406\u4e86\u90a3\u4e9b\u7e41\u6742\u7684\u7ec6\u8282\uff01<\/p>\n

\u9996\u5148\uff0c\u8981\u4f7f\u6570\u636e\u53cc\u5411\u7ed1\u5b9a\uff0c\u5e94\u8be5\u907f\u514d\u8fc7\u591a\u7684\u6570\u636e\u6e90<\/strong>\u3002
\u5728\u6570\u636e\u4ece\u4e0a\u5230\u4e0b\u81ea\u7136\u6d41\u52a8\u7684\u60c5\u51b5\u4e0b\uff0c\u5982\u679c\u6bcf\u4e2a\u7ec4\u4ef6\u4e2d\u90fd\u7ef4\u62a4\u5b83\u4eec\u81ea\u5df1\u7684\u6570\u636e\uff0c\u800c\u53c8\u8981\u4fdd\u6301\u5b83\u4eec\u6570\u636e\u503c\u7684\u4e00\u81f4\uff0c\u8fd9\u867d\u7136\u53ef\u4ee5\u505a\u5230\uff0c\u4f46\u5b9e\u73b0\u8fc7\u7a0b\u5e76\u4e0d\u4f1a\u7b80\u5355\u3002
\u4f46\u662f\u4e5f\u6ca1\u5fc5\u8981\u8bf4\u4e3a\u4e86\u6709\u4e00\u4e2a\u7edf\u4e00\u7684\u6570\u636e\u6e90\u5c31\u4f7f\u7528 mobx<\/strong> \u6216 redux<\/strong> \u6765\u5168\u5c40\u7ba1\u7406\u6570\u636e\uff0c\u8fd9\u5c31\u6709\u70b9\u6740\u9e21\u7528\u725b\u5200\u7684\u611f\u89c9\u4e86\u3002
\u7531\u4e8e\u53cc\u5411\u7ed1\u5b9a\u53ea\u5b58\u5728\u4e8e\u7236\u5b50\u7ec4\u4ef6\u4e4b\u95f4\uff0c\u800c\u6570\u636e\u53c8\u662f\u4ece\u7236\u5230\u5b50\u4f20\u9012\u7684\uff0c\u6240\u4ee5\u53ef\u4ee5\u4f18\u5148\u4f7f\u7528\u7236\u7ec4\u4ef6\u4e2d\u7684\u6570\u636e\u4e3a\u6570\u636e\u6e90\uff0c
\u5b50\u7ec4\u4ef6\u6bcf\u6b21\u66f4\u65b0\u6570\u636e\u5e76\u4e0d\u66f4\u65b0\u5b83\u81ea\u5df1\u5185\u90e8\u7684\u6570\u636e\uff0c\u800c\u662f\u901a\u8fc7\u673a\u5236\u89e6\u53d1\u7236\u7ec4\u4ef6\u66f4\u65b0\u5b83\u7684\u6570\u636e\uff0c\u800c\u7236\u7ec4\u4ef6\u66f4\u65b0\u6570\u636e\u540e\u53c8\u4f1a\u5c06\u66f4\u65b0\u7684\u6570\u636e\u81ea\u7136\u5730\u4f20\u7ed9\u5b50\u7ec4\u4ef6\uff0c
\u7531\u6b64\u8fbe\u5230\u6570\u636e\u7684\u53cc\u5411\u6d41\u52a8\uff01<\/p>\n

\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u600e\u4e48\u5b9e\u73b0\u6570\u636e\u53cc\u5411\u7ed1\u5b9a\u63d2\u56fe\"<\/p>\n

\u5e76\u4e0d\u662f\u6240\u6709\u6570\u636e\u90fd\u9700\u8981\u53cc\u5411\u7ed1\u5b9a\uff0c\u4e5f\u5e76\u4e0d\u662f\u6240\u6709\u6570\u636e\u90fd\u662f\u5bf9\u5916\u7684\uff0c\u5b50\u7ec4\u4ef6\u8fd8\u53ef\u4ee5\u6709\u5b83\u81ea\u5df1\u7684\u4e00\u4e2a\u5185\u90e8\u6570\u636e\u3002\u6240\u4ee5\u8fd9\u5c31\u6d89\u53ca\u5230\u6211\u4eec\u8981\u8bf4\u7684\u7b2c\u4e8c\u4e2a\u95ee\u9898\uff1a\u533a\u5206\u54ea\u4e9b\u6570\u636e\u9700\u8981\u53cc\u5411\u7ed1\u5b9a\uff0c\u54ea\u4e9b\u6570\u636e\u53c8\u9700\u8981\u5b50\u7ec4\u4ef6\u81ea\u5df1\u7ef4\u62a4<\/strong>\u3002<\/p>\n

\u7528\u8fc7 vue<\/strong> \u7684\u5e94\u8be5\u90fd\u77e5\u9053\uff0c\u5728 vue \u4e2d\u8981\u5b9e\u73b0\u53cc\u5411\u7ed1\u5b9a\uff0c\u9700\u8981\u5728\u6a21\u677f\u4e2d\u505a\u7279\u6b8a\u5904\u7406\u3002\u6bd4\u5982\u8981\u5c06\u7236\u7ec4\u4ef6\u7684 parentAttr \u53cc\u5411\u7ed1\u5b9a\u5230\u5b50\u7ec4\u4ef6\u7684 childAttr \u4e0a\uff0c\u9700\u8981\u5728\u7236\u7ec4\u4ef6\u7684\u6a21\u677f\u4e2d\u8fd9\u6837\u5199\uff1a<\/p>\n

<child childAttr.sync=\"parentAttr\" \/><\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4f46\u662f\u5c0f\u7a0b\u5e8f\u5e76\u6ca1\u6709\u8fd9\u6837\u7684\u7b80\u5355\u7684\u8bed\u6cd5\uff0c\u5c0f\u7a0b\u5e8f\u7684 wxml \u8bed\u8a00\u7684\u5c5e\u6027\u540d\u4e2d\u751a\u81f3\u90fd\u4e0d\u5141\u8bb8\u51fa\u73b0 ” . ” \u8fd9\u6837\u7684\u5b57\u7b26\u3002\u56de\u5230\u6211\u4eec\u7684\u95ee\u9898\u4e0a\u6765\uff0c\u5b50\u7ec4\u4ef6\u9700\u8981\u77e5\u9053\u54ea\u4e9b\u5c5e\u6027\u9700\u8981\u53cc\u5411\u7ed1\u5b9a\uff0c\u54ea\u4e9b\u5c5e\u6027\u9700\u8981\u81ea\u5df1\u7ef4\u62a4<\/strong>\uff0c
\u7ed9\u6a21\u677f\u52a0\u4e2a\u5b57\u6bb5\uff08syncAttrMap\uff09\u4e13\u95e8\u6765\u544a\u8bc9\u5b50\u7ec4\u4ef6\u9700\u8981\u53cc\u5411\u7ed1\u5b9a\u7684\u5408\u4e0d\u5c31\u884c\u4e86\u4e48\u3002\u5982\uff0c\u53ef\u4ee5\u5c06\u4e0a\u9762\u7684\u793a\u4f8b\u5199\u6210\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u652f\u6301\u7684\u5199\u6cd5\uff1a<\/p>\n
<child childAttr=\"{{parentAttr}}\" syncAttrMap=\"childAttr=parentAttr\" \/><!--  \u5982\u679c\u540c\u65f6\u5b58\u5728\u591a\u4e2a\u53cc\u5411\u7ed1\u5b9a\u548c\u4e0d\u9700\u8981\u53cc\u5411\u7ed1\u5b9a\u7684\u5c5e\u6027\u65f6\uff0c\u53ef\u4ee5\u5199\u6210\u4e0b\u9762\u8fd9\u6837\uff1a  p1, p2 \u5206\u522b\u53cc\u5411\u7ed1\u5b9a\u5230\u5b50\u7ec4\u4ef6\u7684 c1, c2\uff0c\u800c p3 \u5355\u5411\u7ed1\u5b9a\u5230 c3 \u4e0a--><child c1=\"{{p1}}\" c2=\"{{p2}}\" c3=\"{{p3}}\" syncAttrMap=\"c1=p1&c2=p2\" \/><\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u63a5\u7740\uff0c\u5c31\u9700\u8981\u5904\u7406\u5b50\u7ec4\u4ef6\u6570\u636e\u66f4\u65b0\u7684\u95ee\u9898<\/strong>\u4e86\uff0c\u5728\u5b50\u7ec4\u4ef6\u4e2d\u6709\u4e24\u90e8\u5206\u6570\u636e\uff0c\u4e00\u90e8\u5206\u662f\u5185\u90e8\u6570\u636e\uff0c\u53e6\u4e00\u90e8\u5206\u662f\u7236\u7ec4\u4ef6\u4e2d\u7684\u6570\u636e\uff0c
\u5b50\u7ec4\u4ef6\u53ef\u4ee5\u901a\u8fc7\u8bfb\u53d6\u5c5e\u6027 syncAttrMap \u6765\u5f97\u5230\u54ea\u4e9b\u6570\u636e\u662f\u5185\u90e8\u7684\u6570\u636e\uff0c\u54ea\u4e9b\u6570\u636e\u662f\u7236\u7ec4\u4ef6\u7684\u6570\u636e\uff0c\u5e76\u4e14\u53ef\u4ee5\u77e5\u9053\u5bf9\u5e94
\u7684\u7236\u7ec4\u4ef6\u4e2d\u7684\u6570\u636e\u7684\u952e\u540d\u662f\u4ec0\u4e48\u3002\u7531\u4e8e\u539f\u751f\u7684\u7ec4\u4ef6\u65b9\u6cd5 setData \u4e0d\u4f1a\u7ba1\u4f60\u662f\u5185\u90e8\u6570\u636e\uff0c\u8fd8\u662f\u7236\u7ec4\u4ef6\u4e2d\u7684\u6570\u636e\uff0c\u53ea\u8981
\u4f60\u8c03\u7528\u5b83\u53bb\u66f4\u65b0\u6570\u636e\uff0c\u5b83\u53ea\u4f1a\u66f4\u65b0\u5185\u90e8\u7684\u6570\u636e\u3002\u6240\u4ee5\u9700\u8981\u53e6\u5916\u5b9e\u73b0\u4e00\u4e2a\u65b0\u7684\u65b9\u6cd5\uff0c\u6765\u81ea\u52a8\u5224\u65ad\u6570\u636e\u6e90\uff0c\u5982\u679c\u662f\u5185\u90e8\u6570\u636e\uff0c
\u5219\u76f4\u63a5\u8c03\u7528 setData \uff1b\u5982\u679c\u662f\u53cc\u5411\u7ed1\u5b9a\u4e2d\u7684\u7236\u7ec4\u4ef6\u6570\u636e\uff0c\u5219\u53ef\u4ee5\u89e6\u53d1\u4e00\u4e2a\u4e8b\u4ef6\u53bb\u901a\u77e5\u7236\u7ec4\u4ef6\u53bb\u66f4\u65b0\u5bf9\u5e94\u7684\u503c\u3002<\/p>\n
\u6240\u4ee5\u6839\u636e\u4e0a\u9762\u7684\u63cf\u8ff0\uff0c\u7236\u7ec4\u4ef6\u9700\u8981\u6709\u4e2a\u76d1\u542c\uff0c\u5b50\u7ec4\u4ef6\u9700\u8981\u6709\u4e2a\u667a\u80fd\u7684 setData \u51fd\u6570\u3002\u4e0d\u9632\u5c06\u7236\u7ec4\u4ef6\u7684\u76d1\u542c\u51fd\u6570
\u547d\u540d\u4e3a onSyncAttrUpdate\uff0c\u5c06\u5b50\u7ec4\u4ef6\u7684\u667a\u80fd setData \u51fd\u6570\u547d\u540d\u4e3a setDataSmart\uff0c\u5219\u53ef\u4ee5\u6709\u5982\u4e0b\u4ee3\u7801\uff1a<\/p>\n
\/\/ \u7236\u7ec4\u4ef6Component({\r\n  methods: {\r\n    onSyncAttrUpdate(e) {\r\n      this.setData(e.detail) \/\/ \u5b50\u7ec4\u4ef6\u4f20\u6765\u7684\u9700\u8981\u66f4\u65b0\u7684\u6570\u636e\r\n    }\r\n  }})<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
<!-- \u7236\u7ec4\u4ef6\u7684\u6a21\u677f --><child childAttr=\"{{parentAttr}}\" syncAttrMap=\"childAttr=parentAttr\" bind:syncAttrUpdate=\"onSyncAttrUpdate\" \/><\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\/\/ \u5b50\u7ec4\u4ef6Component({\r\n  properties: {\r\n    childAttr: String,\r\n    syncAttrMap: String  },\r\n  methods: {\r\n    \/\/ \u5b50\u7ec4\u4ef6\u66f4\u65b0\u6570\u636e\u65f6\uff0c\u53ea\u8981\u8c03\u7528\u6b64\u65b9\u6cd5\u5373\u53ef\uff0c\u800c\u4e0d\u662f `setData`\r\n    setDataSmart(data) {\r\n      \/\/ splitDataBySyncAttrMap \u51fd\u6570\u7684\u5b9e\u73b0\u8fc7\u7a0b\u5c31\u4e0d\u8bf4\u4e86\uff0c\u53ea\u662f\u5c06\u5bf9\u8c61\u62c6\u5206\uff0c\u5927\u5bb6\u5e94\u8be5\u90fd\u80fd\u5b9e\u73b0\r\n      let {parentData, innerData} = splitDataBySyncAttrMap(data, this.data.syncAttrMap)      \/\/ \u5185\u90e8\u6570\u636e\u4f7f\u7528 setData \u66f4\u65b0\r\n      if (Object.keys(innerData).length) {\r\n        this.setData(innerData) \/\/ setData \u4e2d\u8fd8\u652f\u6301 callback \u7684\u56de\u8c03\uff0c\u4e3a\u4e86\u7b80\u5316\u4ee3\u7801\uff0c\u8fd9\u91cc\u4e0d\u8ba8\u8bba\r\n      }\r\n      \/\/ \u53cc\u5411\u7ed1\u5b9a\u7684\u7236\u7ec4\u4ef6\u6570\u636e\u89e6\u53d1\u4e8b\u4ef6\u8ba9\u7236\u7ec4\u4ef6\u81ea\u5df1\u53bb\u66f4\u65b0\r\n      if (Object.keys(parentData).length) {\r\n        this.triggerEvent('syncAttrUpdate', parentData)      }\r\n    }\r\n  }})<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5230\u6b64\uff0c\u4e00\u4e2a\u7b80\u5355\u7684\u53cc\u5411\u7ed1\u5b9a\u529f\u80fd\u5c31\u5b8c\u6210\u4e86\u3002\u4f46\u662f\u7531\u4e8e\u5b50\u7ec4\u4ef6\u4e5f\u6709\u53ef\u80fd\u5305\u542b\u7ec4\u4ef6\uff0c\u4e5f\u5c31\u662f\u8bf4\u5b50\u7ec4\u4ef6\u4e5f\u53ef\u4ee5\u662f\u7236\u7ec4\u4ef6\uff0c\u800c\u7236\u7ec4\u4ef6\u540c\u6837\u4e5f
\u53ef\u4ee5\u662f\u5b50\u7ec4\u4ef6\u3002\u6240\u4ee5\u4e0a\u9762\u7684 onSyncAttrUpdate setDataSmart \u51fd\u6570\u9700\u8981\u5728\u6bcf\u4e2a\u7ec4\u4ef6\u4e2d\u90fd\u5b9e\u73b0\uff0c\u6240\u4ee5\u4e0d\u9632
\u5b9a\u4e49\u4e00\u4e2a\u516c\u5171\u5bf9\u8c61 BaseComponent \u6765\u5b9e\u73b0\u4e0a\u9762\u7684\u6240\u6709\u529f\u80fd\uff0c\u5982\uff1a<\/p>\n
\/\/ BaseComponentconst BaseComponent = {\r\n  properties: {\r\n    syncAttrMap: String  },\r\n  methods: {\r\n    setDataSmart() {\r\n      \/\/ ...\r\n    },\r\n    onSyncAttrUpdate() {\r\n      \/\/ ...\r\n    }\r\n  }}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u7136\u540e\u5c06 BaseComponent minin \u5230\u6bcf\u4e2a\u7ec4\u4ef6\u7684\u5bf9\u8c61\u4e0a\u53bb\u5c31\u53ef\u4ee5\u4e86\uff1b\u53e6\u5916\u5c0f\u7a0b\u5e8f\u4e2d\u8fd8\u6709\u4e00\u4e2a\u7279\u6b8a\u7684\u7ec4\u4ef6\uff1aPage<\/strong>\uff0c\u867d\u7136 Page \u548c Component \u7ed3\u6784\u662f\u4e24\u6837\u7684\uff0c
\u4f46\u5b83\u4e5f\u5e94\u8be5\u7b97\u662f\u4e00\u4e2a\u7ec4\u4ef6\uff0c\u4e0d\u8fc7\u5b83\u4e00\u5b9a\u662f\u7236\u7ec4\u4ef6\uff0c\u4e0d\u53ef\u80fd\u662f\u522b\u7684\u7ec4\u4ef6\u7684\u5b50\u7ec4\u4ef6\uff0c\u6240\u4ee5\u8fd8\u9700\u8981\u5c06 onSyncAttrUpdate \u65b9\u6cd5\u5199\u4e86\u6240\u6709\u7684 Page \u5b9a\u4e49\u4e2d\u3002
\u6240\u6709\u8fd9\u4e9b\u5c31\u662f minapp \u7684\u53cc\u5411\u7ed1\u5b9a\u7684\u57fa\u672c\u539f\u7406\u4e86\u3002<\/p>\n
\u7b49\u7b49\uff0c\u6700\u540e\u8fd8\u6709\u4e00\u4ef6\u4e8b\uff1awxml \u6a21\u677f<\/strong>\uff0c\u4e0d\u80fd\u8ba9\u7528\u6237\u6bcf\u6b21\u5199\u53cc\u5411\u7ed1\u5b9a\u7684\u65f6\u5019\u90fd\u8981\u5199\u90a3\u4e48\u590d\u6742\u8bed\u53e5\u5427\uff1f\u5f53\u7136\u4e0d\u7528\uff0cminapp \u5728\u7f16\u8bd1\u65f6\uff0c\u4f1a\u5c06\u6a21\u677f\u505a\u4e2a\u7b80\u5355\u7684\u8f6c\u5316\uff1a<\/p>\n
<child childAttr.sync=\"parentAttr\" \/>\n  \n  <\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
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\u63a8\u8350\u9605\u8bfb\uff1a<\/p>\n
\n
\n
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