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Question

求wxml和js代码

Answer 1

wxml

<input type="text" bindinput="bd" value="{{bd_value}}">

js:

bd(e){
    var that=this;
    if(e.detail.value.length > 10){
      that.setData({
        bd_value:''
      })
      //上传操作 
    }else{
      that.setData({
        bd_value:e.detail.value
      })
    }
}