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dom 拖拽回放
<!doctype html><html><head><meta charset="utf-8"><title>无标题文档</title><style>#div1{ height:100px; width:100px; background:pink; position:absolute; }</style><script>window.onload = function (){ var obtn = document.getElementById(‘btn‘); var odiv = document.getElementById(‘div1‘); var arrL = []; var arrT = []; odiv.onmousedown = function (ev) { var ev = ev || event; var dix = ev.clientX - this.offsetLeft; var diy = ev.clientY - this.offsetTop; if(odiv.setCaputre) { odiv.setCapture(); } document.onmousemove = function (ev) { var ev = ev || event; var L = ev.clientX - dix; var T = ev.clientY - diy; if(T < 0) { T = 0; }else if( T > document.documentElement.clientHeight - odiv.offsetHeight) { T = document.documentElement.clientHeight - odiv.offsetHeight; } if( L < 0) { L = 0; } else if(L > document.documentElement.clientWidth - odiv.offsetWidth) { L = document.documentElement.clientWidth - odiv.offsetWidth; } arrT.push(T); arrL.push(L); odiv.style.left = L + ‘px‘; odiv.style.top = T + ‘px‘; }; document.onmouseup = function () { document.onmousemove = document.onmousedown = null; if( odiv.releaseCapture) { odiv.releaseCapture(); } }; return false; }; obtn.onclick = function () { var i = 0; arrT.reverse(); arrL.reverse(); obtn.timer = setInterval( function () { odiv.style.top = arrT[i]+ ‘px‘; odiv.style.left = arrL[i] + ‘px‘; i++; if(i == arrL.length) { clearInterval(obtn.timer); arrT = []; arrL = []; } },20); }; };</script></head><body><input type="button" id="btn" value="http://www.mamicode.com/回放"><div id="div1"></div></body></html>
dom 拖拽回放
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