var bufferX = []; this.onmousemove = function (ev) {//移动 if (true) { playerX = ev.clientX;//鼠标的坐标 playerY = ev.clientY; //控制鱼随鼠标一起动 player.style.left = playerX + "px"; player.style.top = playerY + "px"; bufferX.push(playerX);//将鼠标的X坐标放到数组中 } for(var i=1;i<bufferX.length;i++){ if(bufferX[i]>bufferX[i-1]){ player.src = "./img/player_right.png";//图片更改向右 }else { player.src = "./img/player_left.png";//图片更改向左 } } };
鼠标滑动方向判断 onmousemove=function(ev){ }
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转载自blog.csdn.net/junling_xhu/article/details/80965908
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