这两天做项目,用到了上滑和下拉的功能,主要是通过监听touchmove,touchstart,touchend三个事件去判断页面上滑状态还是下拉状态. 同时加一个知识点:有时在监听时会报错,这个错是这样子的: [Intervention] Unable to preventDefault inside passive event listener due to target being treated as passive. See https://www.chromestatus.com/fe…