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[App引擎]
求助。拖动的实现，预览可以，但在真机调试不行
[复制链接]
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="maximum-scale=1.0,minimum-scale=1.0,user-scalable=0,width=device-width,initial-scale=1.0"/>
<meta name="format-detection" content="telephone=no,email=no,date=no,address=no">
<title>APP</title>
<link rel="stylesheet" type="text/css" href="../css/api.css" />
<link rel="stylesheet" type="text/css" href="../css/common.css" />
<style>
#big {
border: 1px solid #FF3300;
width: 300px;
height: 300px;
position: relative;
}
#small {
background: #99CC00;
width: 50px;
height: 50px;
position: absolute;
cursor: move;
}
</style>
<script type="text/javascript">
function small_down(e) {
var obig = document.getElementById("big");
var osmall = document.getElementById("small");
var e = e || window.event;
document.onmousemove = small_move;
document.onmouseup = small_up;
osmall.startX = e.clientX - osmall.offsetLeft;
osmall.startY = e.clientY - osmall.offsetTop;
}
function small_move(e) {
var obig = document.getElementById("big");
var osmall = document.getElementById("small");
var e = e || window.event;
osmall.style.left = e.clientX - osmall.startX + "px";
osmall.style.top = e.clientY - osmall.startY + "px";
if (e.clientX - osmall.startX <= 0) {
osmall.style.left = 0 + "px";
}
if (e.clientY - osmall.startY <= 0) {
osmall.style.top = 0 + "px";
}
if (e.clientX - osmall.startX >= 250) {
osmall.style.left = 250 + "px";
}
if (e.clientY - osmall.startY >= 250) {
osmall.style.top = 250 + "px";
}
}
function small_up() {
document.onmousemove = "";
document.onmouseup = "";
}
</script>
</head>
<body>
<div id= "big">
<div id="small"></div>
</div>
</body>
</html>
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