直接整个代码复制丢进去运行;
需要加入自己的操作可以在最底下 alert(‘XX’)的地方加

  var h = document.documentElement.clientHeight,

          mybody = document.getElementsByTagName('body')[0];

          mybody.style.height = h + 'px';

 

 

        //返回角度

        function GetSlideAngle(dx,dy) {

          return Math.atan2(dy,dx) * 180 / Math.PI;

        }

 

        //根据起点和终点返回方向 1：向上，2：向下，3：向左，4：向右,0：未滑动

        function GetSlideDirection(startX,startY, endX, endY) {

          var dy = startY - endY;

          var dx = endX - startX;

          var result = 0;

 

          //如果滑动距离太短

          if (Math.abs(dx) < 2 && Math.abs(dy) < 2) {

             return result;

          }

          var angle = GetSlideAngle(dx, dy);

          if (angle >= -45 && angle < 45) {

             result = 4;

          }else if (angle >= 45 && angle < 135) {

             result = 1;

          }else if (angle >= -135 && angle < -45) {

             result = 2;

          }else if ((angle >= 135 && angle <= 180) || (angle >= -180 && angle < -135)) {

             result = 3;

          }

          return result;

        }

 

 

        //滑动处理

        var startX, startY;

        mybody.addEventListener('touchstart', function (ev){

          ev.preventDefault();

          startX = ev.touches[0].pageX;

          startY = ev.touches[0].pageY; 

        }, false);

 
		var isChange = true;
        mybody.addEventListener('touchmove', function (ev){
        	//避免重复触发多次
			if(!isChange){return}
			isChange = false;
			setTimeout(function() {
				isChange = true
			}, 1000);

          var endX, endY;

          ev.preventDefault();

          endX = ev.changedTouches[0].pageX;

          endY = ev.changedTouches[0].pageY;

 

        var direction = GetSlideDirection(startX, startY, endX, endY);

        switch (direction){

          case 0:

            alert("没滑动");

            break;

          case 1:

            alert("向上");

            break;

          case 2:

            alert("向下");

            break;

          case 3:

            alert("向左");

            break;

          case 4:

            alert("向右");

            break;

          default:          

        } 

      }, false);