主题：[求助]在JS中按住不放事件

document.getElementById('bt1').on('touchstart',function(event){
      alert('1')
            event.preventDefault();
              START = new Date().getTime();
             
              recordTimer = setTimeout(function(){
                wx.startRecord({
                      success: function(){
                          localStorage.rainAllowRecord = 'true';
                          $("#start").css("display","block");
                      },
                      cancel: function () {
                          $("#start").css("display","block");
                          $("#start").html("用户拒绝授权录音");
                      }
                  });
              },300);
          });

百度复制代码怎么不生效，还要改那些地方么，按键长按就跳出复制，全选文字了