<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title>滑动验证demo</title>
<script src="http://code.jquery.com/jquery-latest.js"></script>
</head>
<style>
*{padding: 0; margin:0;}
.demo { 300px; height:300px; background:#dddddd; margin:100px auto; }
.main { position:relative; 300px; height:260px; background:#ff3344; }
.end, .start { position:absolute; 40px; height:40px; }
.end { left:200px; top:100px; background:#111111; }
.start { left:0; top:100px; background:#666666; }
.move { position:relative; left:0; top:0; 40px; height:40px; background:#333333; cursor:pointer; }
</style>
<body>
<div class="demo">
<div class="main">
<div class="end"></div>
<div class="start"></div>
</div>
<div class="move"></div>
</div>
<script>
$(function(){
var movedrag=function(){
var oleft=$('.move').offset().left;
var mleft=0;
$('.move').mousedown(function(e){
var dis=e.pageX-oleft;
$('html').mousemove(function(e){
e.preventDefault();
mleft=e.pageX-oleft-dis;
if(mleft>0 && mleft<260){
$('.move').css('left',mleft);
$('.start').css('left',mleft);
}else if(mleft>260){
$('.move').css('left','260px');
$('.start').css('left','260px');
}else{
$('.move').css('left',0);
$('.start').css('left',0);
}
})
$('html').mouseup(function(){
$('html').unbind();
$('.move').unbind();
var oo=parseInt($('.start').css('left'))-200; //设置结合点差距
if(oo<2 && oo>-2){
alert('重合');
}else{
alert('错误');
$('.move').css('left',0);
$('.start').css('left',0);
movedrag();
}
})
})
}
movedrag();
})
</script>
</body>
</html>