{"id":31765,"date":"2024-11-25T10:01:51","date_gmt":"2024-11-25T02:01:51","guid":{"rendered":"https:\/\/fwq.ai\/blog\/31765\/"},"modified":"2024-11-25T10:01:51","modified_gmt":"2024-11-25T02:01:51","slug":"%e5%be%ae%e4%bf%a1%e5%b0%8f%e7%a8%8b%e5%ba%8f%e5%ae%9e%e7%8e%b0%e5%8a%a8%e6%80%81%e8%ae%be%e7%bd%aeplaceholder%e6%8f%90%e7%a4%ba%e6%96%87%e5%ad%97%e5%8f%8a%e6%8c%89%e9%92%ae%e9%80%89%e4%b8%ad","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/31765\/","title":{"rendered":"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u5b9e\u73b0\u52a8\u6001\u8bbe\u7f6eplaceholder\u63d0\u793a\u6587\u5b57\u53ca\u6309\u94ae\u9009\u4e2d\/\u53d6\u6d88\u72b6\u6001\u7684\u65b9\u6cd5"},"content":{"rendered":"

\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4ecb\u7ecd\u4e86\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u5b9e\u73b0\u52a8\u6001\u8bbe\u7f6eplaceholder\u63d0\u793a\u6587\u5b57\u53ca\u6309\u94ae\u9009\u4e2d\/\u53d6\u6d88\u72b6\u6001\u7684\u65b9\u6cd5,\u6d89\u53ca\u4e8b\u4ef6\u7ed1\u5b9a\u53cathis.setdata\u52a8\u6001\u8bbe\u7f6e\u5c5e\u6027\u6570\u636e\u7684\u76f8\u5173\u64cd\u4f5c\u6280\u5de7,\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e0b<\/p>\n

\u672c\u6587\u5b9e\u4f8b\u8bb2\u8ff0\u4e86\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u5b9e\u73b0\u52a8\u6001\u8bbe\u7f6eplaceholder\u63d0\u793a\u6587\u5b57\u53ca\u6309\u94ae\u9009\u4e2d\u53d6\u6d88\u72b6\u6001\u7684\u65b9\u6cd5\u3002\u5206\u4eab\u7ed9\u5927\u5bb6\u4f9b\u5927\u5bb6\u53c2\u8003\uff0c\u5177\u4f53\u5982\u4e0b\uff1a<\/p>\n

\u6548\u679c\u56fe\u5c55\u793a<\/p>\n

\"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u5b9e\u73b0\u52a8\u6001\u8bbe\u7f6eplaceholder\u63d0\u793a\u6587\u5b57\u53ca\u6309\u94ae\u9009\u4e2d\/\u53d6\u6d88\u72b6\u6001\u7684\u65b9\u6cd5\u63d2\u56fe\" \"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u5b9e\u73b0\u52a8\u6001\u8bbe\u7f6eplaceholder\u63d0\u793a\u6587\u5b57\u53ca\u6309\u94ae\u9009\u4e2d\/\u53d6\u6d88\u72b6\u6001\u7684\u65b9\u6cd5\u63d2\u56fe1\" \"\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u5b9e\u73b0\u52a8\u6001\u8bbe\u7f6eplaceholder\u63d0\u793a\u6587\u5b57\u53ca\u6309\u94ae\u9009\u4e2d\/\u53d6\u6d88\u72b6\u6001\u7684\u65b9\u6cd5\u63d2\u56fe2\"<\/p>\n

\u901a\u8fc7\u7ed1\u5b9a\u70b9\u51fb\u4e8b\u4ef6placeholder\u65b9\u6cd5\uff0c\u83b7\u53d6data-num<\/span>\u7684\u503c\uff0c\u901a\u8fc7js\u5224\u65adnum\u7b49\u4e8e\u51e0\uff0c\u7136\u540e\u901a\u8fc7class=”{{num==X?’active’:”}}”\u8868\u8fbe\u5f0f\u5224\u65ad\u54ea\u4e2a\u6807\u7b7e\u5904\u4e8e\u9009\u4e2d\u72b6\u6001\uff08\u5373\u84dd\u5e95\u767d\u5b57\uff09\uff1b<\/p>\n

js\u901a\u8fc7\u83b7\u53d6data-key<\/span>\uff0c\u8bbe\u7f6einput\u8f93\u5165\u6846\u4e2dplaceholder\u7684\u52a8\u6001\u503c<\/p>\n

wxml\u91cc\u7684\u5185\u5bb9\uff1a<\/p>\n<\/p>\n

<view>\n  <p>\n    <span>\u5168\u90e8<\/span>\n    <span>\u6807\u9898<\/span>\n    <span>\u6458\u8981<\/span>\n    <span>\u7533\u8bf7\u4eba<\/span>\n    <span>\u7533\u8bf7\u53f7<\/span>\n    <span>\u4ee3\u7406\u4eba<\/span>\n  <\/p>\n  <p>\n    <span>\u4ee3\u7406\u673a\u6784<\/span>\n    <span>\u516c\u5f00\u53f7<\/span>\n    <span>\u53d1\u660e\u4eba<\/span>\n    <span>\u4e13\u5229\u6743\u4eba<\/span>\n  <\/p>\n<\/view><\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
js\u91cc\u7684\u5185\u5bb9\uff1a<\/p>\n<\/p>\n
var app = getApp()\nPage({\n data: {\n  placeholder:'\u8bf7\u8f93\u5165',\n  ph:'',\n  num:1,\n  key:'',\n },\n placeholder:function(e){\n  var num = e.currentTarget.dataset.num\n  this.setData({\n   ph: this.data.placeholder+e.currentTarget.dataset.key\n  })\n  this.setData({\n   num: num\n  })\n})<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff0c\u66f4\u591a\u76f8\u5173\u5185\u5bb9\u8bf7\u5173\u6ce8PHP\u4e2d\u6587\u7f51\uff01<\/p>\n
\u76f8\u5173\u63a8\u8350\uff1a<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n<\/p>\n
<\/span><\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u5fae\u4fe1\u5c0f\u7a0b\u5e8f\u5b9e\u73b0\u52a8\u6001\u8bbe\u7f6eplaceholder\u63d0\u793a\u6587\u5b57\u53ca\u6309\u94ae\u9009\u4e2d\/\u53d6\u6d88\u72b6\u6001\u7684\u65b9\u6cd5\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":"
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