var move=document.getElementsByClassName("page1_2")[0]; var startX=0; var startY=0; var x=0; var y=0; var off = 0; move.onmousedown=function (e) { var e = e || event; off=1; startX = this.offsetLeft; startY = this.offsetTop; x=e.pageX-startX; y=
当按下鼠标时,图片随鼠标移动松开时图片回到原位 drag("div_id") function drag(node_id){ var node = document.getElementById(node_id); var isYes = false; document.onmousedown = function(even){ isYes = true; var e = even || window.event; node.style.left = e.clientX - 30 +