<!doctype html>
<html>
<head>
<title></title>
<script type="text/javascript">
var mouseX;
var objX;
var isDowm = false; //是否按下鼠标
function mouseDown(obj, e) {
obj.style.cursor = "move";
mouseX = e.clientX;
isDowm = true;
}
function mouseMove(e) {
var div = document.getElementById("div1");
var x = e.clientX;
if (isDowm) {
div.style.left = parseInt(objX) + parseInt(x) - parseInt(mouseX) + "px";
}
}
function mouseUp(e) {
if (isDowm) {
var x = e.clientX;
var div = document.getElementById("div1");
div.style.left = (parseInt(x) - parseInt(mouseX) + parseInt(objX)) + "px";
mouseX = x;
div1.style.cursor = "default";
isDowm = false;
}
}
</script>
</head>
<body>
<div id="div1" style="background-color: Green; border: 1px solid red; height: 300px;
top: 100px; left: 100px; width: 300px; position: absolute;" onmousedown="mouseDown(this,event)"
onmousemove="mouseMove(event)" onmouseup="mouseUp(event)">
</div>
</body>
</html>