bindButtonTap:function(){     var that = this;     //调用chooseVideo来实现在本地选择视频       wx.chooseMedia({         sourceType:['album','camera'],         mediaType:['video'],         maxDuration:60,         camera:['front','back'],         // success(res){         //   that.setData({         //     src:res.tempFilePath,         //     show:true,         //   })         //   console.log(res);         // }         success:(res)=>{           if(res.errMsg=="chooseMedia:ok"){             console.log(this.data)             console.log(res)           }         }       })   }, [图片]