//宿主為瀏覽器//將相應的元素對象的引用傳到函數中function candrag(drager) { drager.onmousedown = function (down) { var offx = drager.offsetLeft var offy = drager.offsetTop; var offxl = down.clientX - offx; var offyl = down.clientY - offy; window.condition = 0;//為window添加了condition屬性，用於解決和click之間的矛盾document.onmousemove = function (move) { drager.style.left = move.clientX - offxl + "px"; drager.style.top = move.clientY - offyl + "px"; drager.style.cursor = "move"; condition = Math.abs(move.clientX - down.clientX) + Math.abs(move.clientY - down.clientY); } } drager.onmouseup = function () { document.onmousemove = null; draggerr.style.cursor = "auto"; } } /*對於和click之間的矛盾解決，需要判斷condition *例如： candrag(dragger); d01.onclick = function () { if (!condition) { d01.style.backgroundColor = "red"; } } *其中，d01為dragger的子元素*/