小程序之输入框文本内容图片显示

    <view class="phone-wrap">
          <input class='phone phone-number' placeholder='请输入手机号码' maxlength='20' value="{{phoneValue}}" bindinput="bindPhone">
          </input>
          <view hidden="{{phoneValue==''}}" class='form-image-wrap' style="" catchtap="catchClose">
            <image class="form-image" src='/images/close.png'></image>
          </view>
        </view>

data:{
 phoneValue:''

}
 bindPhone(e){
    let value = e.detail.value
    apiname.rePhone(value)
    this.setData({
      phoneValue :value
    })
  },