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新建html。

在body标签中输入html。

<div class="item_container">

<div class="item_content" id="imageChange">

<ul>

<li>

<div class="item"> <img src="img/500x500-1.png" width="150" height="150"> 

<span onClick="removePicture(this)" class="rmPicture close">×</span> </div>

</li>

<li>

<div class="item"> <img src="img/500x500-2.png" width="150" height="150"> 

<span onClick="removePicture(this)" class="rmPicture close">×</span> </div>

</li>

<li>

<div class="item"> <img src="img/500x500-3.png" width="150" height="150"> 

<span onClick="removePicture(this)" class="rmPicture close">×</span> </div>

</li>

<li>

<div class="item"> <img src="img/500x500-4.png" width="150" height="150"> 

<span onClick="removePicture(this)" class="rmPicture close">×</span> </div>

</li>

<li>

<div class="item"> <img src="img/500x500-5.png" width="150" height="150"> 

<span onClick="removePicture(this)" class="rmPicture close">×</span> </div>

</li>

<li>

<div class="item"> <img src="img/500x500-6.png" width="150" height="150"> 

<span onClick="removePicture(this)" class="rmPicture close">×</span> </div>

</li>

<li>

<div class="item"> <img src="img/500x500-7.png" width="150" height="150"> 

<span onClick="removePicture(this)" class="rmPicture close">×</span> </div>

</li>

<li>

<div class="item"> <img src="img/500x500-8.png" width="150" height="150"> 

<span onClick="removePicture(this)" class="rmPicture close">×</span> </div>

</li>

<li>

<div class="item"> <img src="img/500x500-9.png" width="150" height="150"> 

<span onClick="removePicture(this)" class="rmPicture close">×</span> </div>

</li>

</ul>

</div>

</div>

书写css样式。

<style type="text/css">

.item_content ul{list-style:none;}

.item_content ul li{width:200px;height:160px;float:left;margin:10px }

.item_content{width:740px;height:auto;border:1px solid #ccc;float:left;}

.item_content .item{width:200px;height:120px;line-height:120px;text-align:center;cursor:pointer;background:#ccc;}

.item_content .item img{width:200px;height:120px;border-radius:6px;}

.close{display:block;width:20px;height:20px;top:0;right:0;z-index:9999;position:absolute;text-align:center;font-size:16px;cursor:pointer;color:aliceblue;}

</style>

书写jq特效。

<script>

$(function() {

function Pointer(x, y) {

this.x = x ;

this.y = y ;

}

function Position(left, top) {

this.left = left ;

this.top = top ;

}

$(".item_container .item").each(function(i) {

this.init = function() {

this.box = $(this).parent() ;

$(this).attr("index", i).css({

position : "absolute",

left : this.box.offset().left,

top : this.box.offset().top

}).appendTo(".item_container") ;

this.drag() ;

},

this.move = function(callback) {

$(this).stop(true).animate({

left : this.box.offset().left,

top : this.box.offset().top

}, 500, function() {

if(callback) {

callback.call(this) ;

}

}) ;

},

this.collisionCheck = function() {

var currentItem = this ;

var direction = null ;

$(this).siblings(".item").each(function() {

if(

currentItem.pointer.x > this.box.offset().left &&

currentItem.pointer.y > this.box.offset().top &&

(currentItem.pointer.x < this.box.offset().left + this.box.width()) &&

(currentItem.pointer.y < this.box.offset().top + this.box.height())

) {

if(currentItem.box.offset().top < this.box.offset().top) {

direction = "down" ;

} else if(currentItem.box.offset().top > this.box.offset().top) {

direction = "up" ;

} else {

direction = "normal" ;

}

this.swap(currentItem, direction) ;

}

}) ;

},

this.swap = function(currentItem, direction) {

if(this.moveing) return false ;

var directions = {

normal : function() {

var saveBox = this.box ;

this.box = currentItem.box ;

currentItem.box = saveBox ;

this.move() ;

$(this).attr("index", this.box.index()) ;

$(currentItem).attr("index", currentItem.box.index()) ;

},

down : function() {

var box = this.box ;

var node = this ;

var startIndex = currentItem.box.index() ;

var endIndex = node.box.index(); ;

for(var i = endIndex; i > startIndex ; i--) {

var prevNode = $(".item_container .item[index="+ (i - 1) +"]")[0] ;

node.box = prevNode.box ;

$(node).attr("index", node.box.index()) ;

node.move() ;

node = prevNode ;

}

currentItem.box = box ;

$(currentItem).attr("index", box.index()) ;

},

up : function() {

var box = this.box ;

var node = this ;

var startIndex = node.box.index() ;

var endIndex = currentItem.box.index(); ;

for(var i = startIndex; i < endIndex; i++) {

var nextNode = $(".item_container .item[index="+ (i + 1) +"]")[0] ;

node.box = nextNode.box ;

$(node).attr("index", node.box.index()) ;

node.move() ;

node = nextNode ;

}

currentItem.box = box ;

$(currentItem).attr("index", box.index()) ;

}

}

directions[direction].call(this) ;

},

this.drag = function() {

var oldPosition = new Position() ;

var oldPointer = new Pointer() ;

var isDrag = false ;

var currentItem = null ;

$(this).mousedown(function(e) {

e.preventDefault() ;

oldPosition.left = $(this).position().left ;

oldPosition.top =  $(this).position().top ;

oldPointer.x = e.clientX ;

oldPointer.y = e.clientY ;

isDrag = true ;

currentItem = this ;

}) ;

$(document).mousemove(function(e) {

var currentPointer = new Pointer(e.clientX, e.clientY) ;

if(!isDrag) return false ;

$(currentItem).css({

"opacity" : "0.8",

"z-index" : 999

}) ;

var left = currentPointer.x - oldPointer.x + oldPosition.left ;

var top = currentPointer.y - oldPointer.y + oldPosition.top ;

$(currentItem).css({

left : left,

top : top

}) ;

currentItem.pointer = currentPointer ;

currentItem.collisionCheck() ;

}) ;

$(document).mouseup(function() {

if(!isDrag) return false ;

isDrag = false ;

currentItem.move(function() {

$(this).css({

"opacity" : "1",

"z-index" : 0

}) ;

}) ;

}) ;

}

this.init() ;

}) ;

}) ;

</script>

添加引用min.js。

<script src="js/jquery-1.8.3.min.js"></script>

网页整体代码架构。

查看效果。