{"id":34309,"date":"2024-11-25T09:41:32","date_gmt":"2024-11-25T01:41:32","guid":{"rendered":"https:\/\/fwq.ai\/blog\/34309\/"},"modified":"2024-11-25T09:41:32","modified_gmt":"2024-11-25T01:41:32","slug":"%e5%8d%81%e5%88%86%e9%92%9f%e6%90%9e%e5%ae%9a%e5%b0%8f%e7%a8%8b%e5%ba%8f%e7%9a%84%e6%9d%a1%e4%bb%b6%e6%b8%b2%e6%9f%93","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/34309\/","title":{"rendered":"\u5341\u5206\u949f\u641e\u5b9a\u5c0f\u7a0b\u5e8f\u7684\u6761\u4ef6\u6e32\u67d3"},"content":{"rendered":"

\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86\u5173\u4e8e\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5176\u4e2d\u4e3b\u8981\u4ecb\u7ecd\u4e86\u5173\u4e8e\u6761\u4ef6\u6e32\u67d3\u7684\u76f8\u5173\u5185\u5bb9\uff0c\u6240\u8c13\u6761\u4ef6\u6e32\u67d3\u5c31\u662f\u5224\u65ad\u662f\u5426\u8981\u628a\u4ee3\u7801\u6e32\u67d3\u5230\u5c55\u793a\u9875\u9762\u4e0a\uff0c\u4e0b\u9762\u4e00\u8d77\u6765\u770b\u4e00\u4e0b\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u6709\u5e2e\u52a9\u3002<\/p>\n

\"\u5341\u5206\u949f\u641e\u5b9a\u5c0f\u7a0b\u5e8f\u7684\u6761\u4ef6\u6e32\u67d3\u63d2\u56fe\"<\/p>\n

1.wx:if\u5b9e\u73b0\u6761\u4ef6\u6e32\u67d3<\/h2>\n

\u5728\u6846\u67b6\u4e2d\uff0c\u4f7f\u7528 wx:if=”” \u6765\u5224\u65ad\u662f\u5426\u9700\u8981\u6e32\u67d3\u8be5\u4ee3\u7801\u5757\uff1a<\/p>\n

<view wx:if=\"{{condition}}\">True<view><\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5982\u679ccondition\u7684\u503c\u4e3atrue\uff0c\u5c31\u4f1a\u5728\u9875\u9762\u4e0a\u6e32\u67d3\u51faview\u7ec4\u4ef6\uff0c\u5426\u5219\u5c06\u4e0d\u4f1a\u663e\u793a\u8be5\u7ec4\u4ef6\u3002\u540c\u65f6\u8fd8\u53ef\u4ee5\u7ed3\u5408wx:elif\u548cwx:else\u6765\u4f7f\u7528\uff0c\u6b64\u65f6\u53ef\u4ee5\u8fdb\u884c\u591a\u6761\u4ef6\u7684\u5224\u65ad\u662f\u5426\u6e32\u67d3\u8be5\u4ee3\u7801\u3002<\/p>\n
<view wx:if=\"{{type===1}}\">\u7ec4\u4ef61<\/view><view wx:elif=\"{{type===2}}\">\u7ec4\u4ef62<\/view><view wx:else>\u7ec4\u4ef63<\/view><\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\n  \u4e0b\u9762\u505a\u4e00\u4e2a\u6f14\u793a\uff1a\u5728js\u6587\u4ef6\u7684data\u4e2d\u5b9a\u4e49\u4e00\u4e2atype\uff0c\u540c\u65f6\u5728wxml\u6587\u4ef6\u4e2d\u5b9a\u4e49\u4e09\u4e2aview\u7ec4\u4ef6\uff0c\u6839\u636etype\u7684\u503c\u6765\u51b3\u5b9a\u662f\u5426\u6e32\u67d3view\u7ec4\u4ef6\u3002\u6b64\u65f6\uff0c\u6539\u53d8type\u7684\u503c\u5c31\u53ef\u4ee5\u6539\u53d8\u9875\u9762\u6e32\u67d3\u7684\u5185\u5bb9\u3002\n<\/p><\/blockquote>\n
 2.block\u7ed3\u5408wx:if\u4f7f\u7528<\/h2>\n
\u56e0\u4e3a wx:if \u662f\u4e00\u4e2a\u63a7\u5236\u5c5e\u6027\uff0c\u9700\u8981\u5c06\u5b83\u6dfb\u52a0\u5230\u4e00\u4e2a\u6807\u7b7e\u4e0a\u3002\u5982\u679c\u8981\u4e00\u6b21\u6027\u5224\u65ad\u591a\u4e2a\u7ec4\u4ef6\u6807\u7b7e\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2a \u6807\u7b7e\u5c06\u591a\u4e2a\u7ec4\u4ef6\u5305\u88c5\u8d77\u6765\uff0c\u5e76\u5728\u4e0a\u8fb9\u4f7f\u7528 wx:if \u63a7\u5236\u5c5e\u6027\u3002<\/p>\n
<block wx:if=\"{{true}}\">\n  <view> view1 <\/view>\n  <view> view2 <\/view><\/block><\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6ce8\u610f\uff1a<\/strong>\u4e0d\u662f\u4e00\u4e2a\u7ec4\u4ef6\uff0c\u53ea\u662f\u4e00\u4e2a\u5305\u88f9\u6027\u7684\u5bb9\u5668\uff0c\u4e0d\u4f1a\u5728\u9875\u9762\u4e0a\u505a\u4efb\u4f55\u6e32\u67d3\u3002<\/p>\n
\n
\u4e0b\u9762\u505a\u4e00\u4e2a\u6f14\u793a\uff1a\u5728 \u4e2d\u5305\u88f9\u4e24\u4e2aview\u7ec4\u4ef6\uff0c\u4f7f\u7528wx:if\u6765\u51b3\u5b9a\u662f\u5426\u9700\u8981\u6e32\u67d3\u8fd9\u4e24\u4e2a\u7ec4\u4ef6\u3002 
 \"\u5341\u5206\u949f\u641e\u5b9a\u5c0f\u7a0b\u5e8f\u7684\u6761\u4ef6\u6e32\u67d3\u63d2\u56fe1\" 
 \"\u5341\u5206\u949f\u641e\u5b9a\u5c0f\u7a0b\u5e8f\u7684\u6761\u4ef6\u6e32\u67d3\u63d2\u56fe2\" 
 \u6b64\u65f6\u5728\u9875\u9762\u4e0a\u6e32\u67d3\u4e86\u4e24\u4e2aview\u7ec4\u4ef6\uff0cblock\u4f5c\u4e3a\u5305\u88f9\u6027\u7684\u5bb9\u5668\u5e76\u6ca1\u6709\u88ab\u6e32\u67d3\u3002 <\/p>\n<\/blockquote>\n
 3.hiden\u5b9e\u73b0\u6761\u4ef6\u6e32\u67d3<\/h2>\n
\u5728\u6846\u67b6\u4e2d\uff0c\u4f7f\u7528 hidden=”” \u6765\u63a7\u5236\u7ec4\u4ef6\u7684\u663e\u793a\u4e0e\u9690\u85cf\u3002\u4e0e\u524d\u9762\u4e0d\u540c\u7684\u662f\uff0chidden\u7ec4\u4ef6\u59cb\u7ec8\u4f1a\u88ab\u6e32\u67d3\uff0c\u53ea\u662f\u7b80\u5355\u7684\u63a7\u5236\u663e\u793a\u4e0e\u9690\u85cf\u3002<\/p>\n
<view hidden=\"{{false}}\">\u5f53\u6761\u4ef6\u4e3atrue\u65f6\u5219\u4f1a\u9690\u85cf\u8be5\u5143\u7d20<\/view><\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\n
\u4e0b\u9762\u505a\u4e00\u4e2a\u6f14\u793a\uff1a\u5728js\u6587\u4ef6\u4e2d\u5b9a\u4e49\u4e00\u4e2aflag\uff0c\u5728wxml\u6587\u4ef6\u4e2d\u4f7f\u7528hidden\u9690\u85cfview\u7ec4\u4ef6\u3002
\"\u5341\u5206\u949f\u641e\u5b9a\u5c0f\u7a0b\u5e8f\u7684\u6761\u4ef6\u6e32\u67d3\u63d2\u56fe3\"
\"\u5341\u5206\u949f\u641e\u5b9a\u5c0f\u7a0b\u5e8f\u7684\u6761\u4ef6\u6e32\u67d3\u63d2\u56fe4\"
 \u53ef\u4ee5\u5728AppData\u4e2d\u6539\u53d8flag\u7684\u503c\u4ece\u800c\u63a7\u5236\u662f\u5426\u9690\u85cf\u8be5view\u7ec4\u4ef6\u3002<\/p>\n<\/blockquote>\n
 4. wx:if vs hidden<\/h2>\n
\u56e0\u4e3a wx:if \u4e4b\u4e2d\u7684\u6a21\u677f\u4e5f\u53ef\u80fd\u5305\u542b\u6570\u636e\u7ed1\u5b9a\uff0c\u6240\u4ee5\u5f53 wx:if \u7684\u6761\u4ef6\u503c\u5207\u6362\u65f6\uff0c\u6846\u67b6\u6709\u4e00\u4e2a\u5c40\u90e8\u6e32\u67d3\u7684\u8fc7\u7a0b\uff0c\u56e0\u4e3a\u5b83\u4f1a\u786e\u4fdd\u6761\u4ef6\u5757\u5728\u5207\u6362\u65f6\u9500\u6bc1\u6216\u91cd\u65b0\u6e32\u67d3\u3002<\/p>\n
\u540c\u65f6 wx:if \u4e5f\u662f\u60f0\u6027\u7684\uff0c\u5982\u679c\u5728\u521d\u59cb\u6e32\u67d3\u6761\u4ef6\u4e3a false\uff0c\u6846\u67b6\u4ec0\u4e48\u4e5f\u4e0d\u505a\uff0c\u5728\u6761\u4ef6\u7b2c\u4e00\u6b21\u53d8\u6210\u771f\u7684\u65f6\u5019\u624d\u5f00\u59cb\u5c40\u90e8\u6e32\u67d3\u3002<\/p>\n
\u76f8\u6bd4\u4e4b\u4e0b\uff0chidden \u5c31\u7b80\u5355\u7684\u591a\uff0c\u7ec4\u4ef6\u59cb\u7ec8\u4f1a\u88ab\u6e32\u67d3\uff0c\u53ea\u662f\u7b80\u5355\u7684\u63a7\u5236\u663e\u793a\u4e0e\u9690\u85cf\u3002<\/p>\n
\u4e00\u822c\u6765\u8bf4\uff0cwx:if \u6709\u66f4\u9ad8\u7684\u5207\u6362\u6d88\u8017\u800c hidden \u6709\u66f4\u9ad8\u7684\u521d\u59cb\u6e32\u67d3\u6d88\u8017\u3002\u56e0\u6b64\uff0c\u5982\u679c\u9700\u8981\u9891\u7e41\u5207\u6362\u7684\u60c5\u666f\u4e0b\uff0c\u7528 hidden \u66f4\u597d\uff0c\u5982\u679c\u5728\u8fd0\u884c\u65f6\u6761\u4ef6\u4e0d\u5927\u53ef\u80fd\u6539\u53d8\u5219 wx:if \u8f83\u597d\u3002<\/p>\n
\u3010\u76f8\u5173\u5b66\u4e60\u63a8\u8350\uff1a\u3011<\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u5341\u5206\u949f\u641e\u5b9a\u5c0f\u7a0b\u5e8f\u7684\u6761\u4ef6\u6e32\u67d3\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":"
\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86\u5173\u4e8e\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5176\u4e2d\u4e3b\u8981\u4ecb\u7ecd\u4e86\u5173\u4e8e\u6761\u4ef6\u6e32\u67d3\u7684\u76f8\u5173\u5185\u5bb9\uff0c\u6240\u8c13\u6761\u4ef6\u6e32\u67d3\u5c31\u662f\u5224\u65ad\u662f\u5426\u8981\u628a\u4ee3\u7801\u6e32\u67d3\u5230\u5c55\u793a\u9875\u9762\u4e0a\uff0c\u4e0b\u9762\u4e00\u8d77\u6765\u770b\u4e00\u4e0b\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u6709\u5e2e\u52a9\u3002 1.wx:if\u5b9e\u73b0\u6761\u4ef6\u6e32\u67d3 \u5728\u6846\u67b6\u4e2d\uff0c\u4f7f\u7528 wx:if=”” \u6765\u5224\u65ad\u662f\u5426\u9700\u8981\u6e32\u67d3\u8be5\u4ee3\u7801\u5757\uff1a <view wx:if=”{{condition}}”>True<view> \u767b\u5f55\u540e\u590d\u5236 \u5982\u679ccondition\u7684\u503c\u4e3atrue\uff0c\u5c31\u4f1a\u5728\u9875\u9762\u4e0a\u6e32\u67d3\u51faview\u7ec4\u4ef6\uff0c\u5426\u5219\u5c06\u4e0d\u4f1a\u663e\u793a\u8be5\u7ec4\u4ef6\u3002\u540c\u65f6\u8fd8\u53ef\u4ee5\u7ed3\u5408wx:elif\u548cwx:else\u6765\u4f7f\u7528\uff0c\u6b64\u65f6\u53ef\u4ee5\u8fdb\u884c\u591a\u6761\u4ef6\u7684\u5224\u65ad\u662f\u5426\u6e32\u67d3\u8be5\u4ee3\u7801\u3002 <view wx:if=”{{type===1}}”>\u7ec4\u4ef61<\/view><view wx:elif=”{{type===2}}”>\u7ec4\u4ef62<\/view><view wx:else>\u7ec4\u4ef63<\/view> \u767b\u5f55\u540e\u590d\u5236 \u4e0b\u9762\u505a\u4e00\u4e2a\u6f14\u793a\uff1a\u5728js\u6587\u4ef6\u7684data\u4e2d\u5b9a\u4e49\u4e00\u4e2atype\uff0c\u540c\u65f6\u5728wxml\u6587\u4ef6\u4e2d\u5b9a\u4e49\u4e09\u4e2aview\u7ec4\u4ef6\uff0c\u6839\u636etype\u7684\u503c\u6765\u51b3\u5b9a\u662f\u5426\u6e32\u67d3view\u7ec4\u4ef6\u3002\u6b64\u65f6\uff0c\u6539\u53d8type\u7684\u503c\u5c31\u53ef\u4ee5\u6539\u53d8\u9875\u9762\u6e32\u67d3\u7684\u5185\u5bb9\u3002 2.block\u7ed3\u5408wx:if\u4f7f\u7528 \u56e0\u4e3a wx:if \u662f\u4e00\u4e2a\u63a7\u5236\u5c5e\u6027\uff0c\u9700\u8981\u5c06\u5b83\u6dfb\u52a0\u5230\u4e00\u4e2a\u6807\u7b7e\u4e0a\u3002\u5982\u679c\u8981\u4e00\u6b21\u6027\u5224\u65ad\u591a\u4e2a\u7ec4\u4ef6\u6807\u7b7e\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2a \u6807\u7b7e\u5c06\u591a\u4e2a\u7ec4\u4ef6\u5305\u88c5\u8d77\u6765\uff0c\u5e76\u5728\u4e0a\u8fb9\u4f7f\u7528 wx:if \u63a7\u5236\u5c5e\u6027\u3002 <block wx:if=”{{true}}”> <view> view1 <\/view> <view> view2 <\/view><\/block> \u767b\u5f55\u540e\u590d\u5236 \u6ce8\u610f\uff1a\u4e0d\u662f\u4e00\u4e2a\u7ec4\u4ef6\uff0c\u53ea\u662f\u4e00\u4e2a\u5305\u88f9\u6027\u7684\u5bb9\u5668\uff0c\u4e0d\u4f1a\u5728\u9875\u9762\u4e0a\u505a\u4efb\u4f55\u6e32\u67d3\u3002 \u4e0b\u9762\u505a\u4e00\u4e2a\u6f14\u793a\uff1a\u5728 \u4e2d\u5305\u88f9\u4e24\u4e2aview\u7ec4\u4ef6\uff0c\u4f7f\u7528wx:if\u6765\u51b3\u5b9a\u662f\u5426\u9700\u8981\u6e32\u67d3\u8fd9\u4e24\u4e2a\u7ec4\u4ef6\u3002 \u6b64\u65f6\u5728\u9875\u9762\u4e0a\u6e32\u67d3\u4e86\u4e24\u4e2aview\u7ec4\u4ef6\uff0cblock\u4f5c\u4e3a\u5305\u88f9\u6027\u7684\u5bb9\u5668\u5e76\u6ca1\u6709\u88ab\u6e32\u67d3\u3002 3.hiden\u5b9e\u73b0\u6761\u4ef6\u6e32\u67d3 \u5728\u6846\u67b6\u4e2d\uff0c\u4f7f\u7528 hidden=”” \u6765\u63a7\u5236\u7ec4\u4ef6\u7684\u663e\u793a\u4e0e\u9690\u85cf\u3002\u4e0e\u524d\u9762\u4e0d\u540c\u7684\u662f\uff0chidden\u7ec4\u4ef6\u59cb\u7ec8\u4f1a\u88ab\u6e32\u67d3\uff0c\u53ea\u662f\u7b80\u5355\u7684\u63a7\u5236\u663e\u793a\u4e0e\u9690\u85cf\u3002 <view hidden=”{{false}}”>\u5f53\u6761\u4ef6\u4e3atrue\u65f6\u5219\u4f1a\u9690\u85cf\u8be5\u5143\u7d20<\/view> \u767b\u5f55\u540e\u590d\u5236 \u4e0b\u9762\u505a\u4e00\u4e2a\u6f14\u793a\uff1a\u5728js\u6587\u4ef6\u4e2d\u5b9a\u4e49\u4e00\u4e2aflag\uff0c\u5728wxml\u6587\u4ef6\u4e2d\u4f7f\u7528hidden\u9690\u85cfview\u7ec4\u4ef6\u3002 \u53ef\u4ee5\u5728AppData\u4e2d\u6539\u53d8flag\u7684\u503c\u4ece\u800c\u63a7\u5236\u662f\u5426\u9690\u85cf\u8be5view\u7ec4\u4ef6\u3002 4. wx:if vs hidden \u56e0\u4e3a wx:if \u4e4b\u4e2d\u7684\u6a21\u677f\u4e5f\u53ef\u80fd\u5305\u542b\u6570\u636e\u7ed1\u5b9a\uff0c\u6240\u4ee5\u5f53 wx:if \u7684\u6761\u4ef6\u503c\u5207\u6362\u65f6\uff0c\u6846\u67b6\u6709\u4e00\u4e2a\u5c40\u90e8\u6e32\u67d3\u7684\u8fc7\u7a0b\uff0c\u56e0\u4e3a\u5b83\u4f1a\u786e\u4fdd\u6761\u4ef6\u5757\u5728\u5207\u6362\u65f6\u9500\u6bc1\u6216\u91cd\u65b0\u6e32\u67d3\u3002 \u540c\u65f6 wx:if 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