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jquery实现对div的拖拽功能

2017-05-25 22:45 337 查看 


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>拖动DIV</title>
<style type="text/css">
#show1 {
background: #7cd2f8;
width: 100px;
height: 100px;
text-align: center;
position: absolute;
z-index: 1;
left: 0px;
top: 0px;
border: 1px solid black;
}
#show2 {
background: #7cd2f8;
width: 100px;
height: 100px;
text-align: center;
position: absolute;
z-index: 1;
left: 100px;
top: 0px;
border: 1px solid black;
}
#show3 {
background: #7cd2f8;
width: 100px;
height: 100px;
text-align: center;
position: absolute;
z-index: 1;
left: 200px;
top: 0px;
border: 1px solid black;
}
#show4 {
background: #7cd2f8;
width: 100px;
height: 100px;
text-align: center;
position: absolute;
z-index: 1;
left: 0px;
top: 100px;
border: 1px solid black;
}
#show5 {
background: #7cd2f8;
width: 100px;
height: 100px;
text-align: center;
position: absolute;
z-index: 1;
left: 100px;
top: 100px;
border: 1px solid black;
}
#show6 {
background: #7cd2f8;
width: 100px;
height: 100px;
text-align: center;
position: absolute;
z-index: 1;
left: 200px;
top: 100px;
border: 1px solid black;
}
#show7 {
background: #7cd2f8;
width: 100px;
height: 100px;
text-align: center;
position: absolute;
z-index: 1;
left: 0px;
top: 200px;
border: 1px solid black;
}
#show8 {
background: #7cd2f8;
width: 100px;
height: 100px;
text-align: center;
position: absolute;
z-index: 1;
left: 100px;
top: 200px;
border: 1px solid black;
}
#show9 {
background: #7cd2f8;
width: 100px;
height: 100px;
text-align: center;
position: absolute;
z-index: 1;
left: 200px;
top: 200px;
border: 1px solid black;
}
#right{
width: 306px;
height: 306px;
position: absolute;
top: 0px;
left: 400px;
border: 1px solid black;
}
</style>
<script type="text/javascript" src="gongju/jquery-1.11.2.min.js"></script>

</head>
<body>
<div class="show" id="show1" bs="1">
1
</div>
<div class="show" id="show2" bs="2">
2
</div>
<div class="show" id="show3" bs="3">
3
</div>
<div class="show" id="show4" bs="4">
4
</div>
<div class="show" id="show5" bs="5">
5
</div>
<div class="show" id="show6" bs="6">
6
</div>
<div class="show" id="show7" bs="7">
7
</div>
<div class="show" id="show8" bs="8">
8
</div>
<div class="show" id="show9" bs="9">
9
</div>
<!----------------------------------------------->
<div id="right">

</div>
</body>
</html>
<script type="text/javascript">
var biao;
$(document).ready(function() {
$(".show").mousedown(function(e) //e鼠标事件
{
biao=$(this).attr("bs");
$(this).css("cursor", "move"); //改变鼠标指针的形状

var offset = $(this).offset(); //DIV在页面的位置
var x = e.pageX - offset.left; //获得鼠标指针离DIV元素左边界的距离
var y = e.pageY - offset.top; //获得鼠标指针离DIV元素上边界的距离
$(document).bind("mousemove", function(ev) //绑定鼠标的移动事件，因为光标在DIV元素外面也要有效果，所以要用doucment的事件，而不用DIV元素的事件
{
$("#show"+biao+"").stop(); //加上这个之后

var _x = ev.pageX - x; //获得X轴方向移动的值
var _y = ev.pageY - y; //获得Y轴方向移动的值

$("#show"+biao+"").animate({
left: _x + "px",
top: _y + "px"
}, 10);
});

});

$(document).mouseup(function() {
$("#show"+biao+"").css("cursor", "default");
$(this).unbind("mousemove");
})
})
</script>
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