closeWindow() {
      if (document.addEventListener) {
        document.addEventListener(
          'WeixinJSBridgeReady',
          function () {
            WeixinJSBridge.call('closeWindow');
            parent.WeixinJSBridge.call('closeWindow');
          },
          false
        );
      } else if (document.attachEvent) {
        document.attachEvent('onWeixinJSBridgeReady', function () {
          //这个可以关闭ios系统的手机
          WeixinJSBridge.call('closeWindow');
        });
      }
      // 必须加最后这一句,否则关闭不了
      WeixinJSBridge.call('closeWindow');
    }
```s