<input class="weui-input" placeholder="扫码录入单号" value="{{qrcode}}" bindconfirm="doConfirm" id="myInput"/>
用了wx.resquest var tha=this;
that.selectComponent('#myInput').focus();
<input class="weui-input" placeholder="扫码录入单号" value="{{qrcode}}" bindconfirm="doConfirm" id="myInput"/>
用了wx.resquest var tha=this;
that.selectComponent('#myInput').focus();