css:
.div1{width:100px}//这个随意设置
.div1 img{width:100%}
html:
<div class="div1"><img src="我的图片" /></div>
jQuery拖拽通过八个点改变div大小js:
(function($) {
/**
* 默认参数
*/
var defaultOpts = {
stage: document, //舞台
item: 'resize-item', //可缩放的类名
}
/**
* 定义类
*/
var ZResize = function(options) {
this.options = $.extend({}, defaultOpts, options)
this.init()
}
ZResize.prototype = {
init: function() {
this.initResizeBox()
},
/**
* 初始化拖拽item
*/
initResizeBox: function() {
var self = this
$(self.options.item).each(function () {
//创建面板
var width = $(this).width()
var height = $(this).height()
var resizePanel = $('<div class"resize-panel"></div>')
resizePanel.css({
width: width,
height: height,
top: 0,
left: 0,
position: 'absolute',
'background-color': 'rgba(0,0,0,0.5)',
cursor: 'move',
display: 'none'
})
self.appendHandler(resizePanel, $(this))
/**
* 创建控制点
*/
var n = $('<div class="n"></div>')//北
var s = $('<div class="s"></div>')//南
var w = $('<div class="w"></div>')//西
var e = $('<div class="e"></div>')//东
var ne = $('<div class="ne"></div>')//东北
var nw = $('<div class="nw"></div>')//西北
var se = $('<div class="se"></div>')//东南
var sw = $('<div class="sw"></div>')//西南
//添加公共样式
self.addHandlerCss([n, s, w, e, ne, nw, se, sw])
//添加各自样式
n.css({
'top': '-4px',
'margin-left': '-4px',
'left': '50%',
'cursor': 'n-resize'
})
s.css({
'bottom': '-4px',
'margin-left': '-4px',
'left': '50%',
'cursor': 's-resize'
})
e.css({
'top': '50%',
'margin-top': '-4px',
'right': '-4px',
'cursor': 'e-resize'
})
w.css({
'top': '50%',
'margin-top': '-4px',
'left': '-4px',
'cursor': 'w-resize'
})
ne.css({
'top': '-4px',
'right': '-4px',
'cursor': 'ne-resize'
})
nw.css({
top: '-4px',
'left': '-4px',
'cursor': 'nw-resize'
})
se.css({
'bottom': '-4px',
'right': '-4px',
'cursor': 'se-resize'
})
sw.css({
'bottom': '-4px',
'left': '-4px',
'cursor': 'sw-resize'
})
// 添加项目
self.appendHandler([n, s, w, e, ne, nw, se, sw], resizePanel)
//绑定拖拽缩放事件
self.bindResizeEvent(resizePanel, $(this))
//绑定触发事件
self.bindTrigger($(this))
})
self.bindHidePanel()
},
//控制点公共样式
addHandlerCss: function(els) {
for(var i = 0i <els.lengthi++) {
el = els[i]
el.css({
position: 'absolute',
width: '8px',
height: '8px',
background: '#ff6600',
margin: '0',
'border-radius': '2px',
border: '1px solid #dd5500',
})
}
},
/**
* 插入容器
*/
appendHandler: function(handlers, target) {
for(var i = 0i <handlers.lengthi++) {
el = handlers[i]
target.append(el)
}
},
/**
* 显示拖拽面板
*/
triggerResize: function(el) {
var self = this
el.siblings(self.options.item).children('div').css({
display: 'none'
})
el.children('div').css({
display: 'block'
})
},
/**
* 拖拽事件控制 包含8个缩放点 和一个拖拽位置
*/
bindResizeEvent: function(el) {
var self = this
var ox = 0//原始事件x位置
var oy = 0//原始事件y位置
var ow = 0//原始宽度
var oh = 0//原始高度
var oleft = 0//原始元素位置
var otop = 0
var org = el.parent('div')
//东
var emove = false
el.on('mousedown','.e', function(e) {
ox = e.pageX//原始x位置
ow = el.width()
emove = true
})
//南
var smove = false
el.on('mousedown','.s', function(e) {
oy = e.pageY//原始x位置
oh = el.height()
smove = true
})
//西
var wmove = false
el.on('mousedown','.w', function(e) {
ox = e.pageX//原始x位置
ow = el.width()
wmove = true
oleft = parseInt(org.css('left').replace('px', ''))
})
//北
var nmove = false
el.on('mousedown','.n', function(e) {
oy = e.pageY//原始x位置
oh = el.height()
nmove = true
otop = parseInt(org.css('top').replace('px', ''))
})
//东北
var nemove = false
el.on('mousedown','.ne', function(e) {
ox = e.pageX//原始x位置
oy = e.pageY
ow = el.width()
oh = el.height()
nemove = true
otop = parseInt(org.css('top').replace('px', ''))
})
//西北
var nwmove = false
el.on('mousedown','.nw', function(e) {
ox = e.pageX//原始x位置
oy = e.pageY
ow = el.width()
oh = el.height()
otop = parseInt(org.css('top').replace('px', ''))
oleft = parseInt(org.css('left').replace('px', ''))
nwmove = true
})
//东南
var semove = false
el.on('mousedown','.se', function(e) {
ox = e.pageX//原始x位置
oy = e.pageY
ow = el.width()
oh = el.height()
semove = true
})
//西南
var swmove = false
el.on('mousedown','.sw', function(e) {
ox = e.pageX//原始x位置
oy = e.pageY
ow = el.width()
oh = el.height()
swmove = true
oleft = parseInt(org.css('left').replace('px', ''))
})
//拖拽
var drag = false
el.on('mousedown', function(e) {
ox = e.pageX//原始x位置
oy = e.pageY
otop = parseInt(org.css('top').replace('px', ''))
oleft = parseInt(org.css('left').replace('px', ''))
drag = true
})
$(self.options.stage).on('mousemove', function(e) {
if(emove) {
var x = (e.pageX - ox)
el.css({
width: ow + x
})
org.css({
width: ow + x
})
} else if(smove) {
var y = (e.pageY - oy)
el.css({
height: oh + y
})
org.css({
height: oh + y
})
} else if(wmove) {
var x = (e.pageX - ox)
el.css({
width: ow - x,
// left: oleft + x
})
org.css({
width: ow - x,
left: oleft + x
})
} else if(nmove) {
var y = (e.pageY - oy)
el.css({
height: oh - y,
// top: otop + y
})
org.css({
height: oh - y,
top: otop + y
})
} else if(nemove) {
var x = e.pageX - ox
var y = e.pageY - oy
el.css({
height: oh - y,
// top: otop + y,
width: ow + x
})
org.css({
height: oh - y,
top: otop + y,
width: ow + x
})
} else if(nwmove) {
var x = e.pageX - ox
var y = e.pageY - oy
el.css({
height: oh - y,
// top: otop + y,
width: ow - x,
// left: oleft + x
})
org.css({
height: oh - y,
top: otop + y,
width: ow - x,
left: oleft + x
})
} else if(semove) {
var x = e.pageX - ox
var y = e.pageY - oy
el.css({
width: ow + x,
height: oh + y
})
org.css({
width: ow + x,
height: oh + y
})
} else if(swmove) {
var x = e.pageX - ox
var y = e.pageY - oy
el.css({
width: ow - x,
// left: oleft + x,
height: oh + y
})
org.css({
width: ow - x,
left: oleft + x,
height: oh + y
})
} else if(drag) {
var x = e.pageX - ox
var y = e.pageY - oy
org.css({
left: oleft + x,
top: otop + y
})
}
}).on('mouseup', function(e) {
emove = false
smove = false
wmove = false
nmove = false
nemove = false
nwmove = false
swmove = false
semove = false
drag = false
})
},
/**
* 点击item显示拖拽面板
*/
bindTrigger: function(el) {
var self = this
el.on('click', function(e) {
e.stopPropagation()
self.triggerResize(el)
})
},
/**
* 点击舞台空闲区域 隐藏缩放面板
*/
bindHidePanel: function(el) {
var stage = this.options.stage
var item = this.options.item
$(stage).bind('click', function() {
$(item).children('div').css({
display: 'none'
})
})
}
}
window.ZResize = ZResize
})(jQuery)
html:
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>jQuery拖拽放大缩小插件idrag</title>
<meta http-equiv="Content-Type" content="text/htmlcharset=utf-8">
<style type="text/css">
.item1 {
width: 405px
height: 291px
cursor: move
position: absolute
top: 30px
left: 30px
background-color: #FFF
border: 1px solid #CCCCCC
-webkit-box-shadow: 10px 10px 25px #ccc
-moz-box-shadow: 10px 10px 25px #ccc
box-shadow: 10px 10px 25px #ccc
}
.item2 {
width: 200px
height: 100px
cursor: move
position: absolute
top: 400px
left: 100px
background-color: #FFF
border: 1px solid #CCCCCC
-webkit-box-shadow: 10px 10px 25px #ccc
-moz-box-shadow: 10px 10px 25px #ccc
box-shadow: 10px 10px 25px #ccc
line-height: 100px
text-align: center
}
body {
background-color: #F3F3F3
}
</style>
</head>
<body>
<div id="mydiv" style="width:800pxheight:800pxborder-style:solid">
<div id="div1" class="resize-item item1">
<img src="images/dog.png" width="100%" height="100%">
</div>
<div class="resize-item item2">
你是我的小小狗
</div>
</div>
<script src="jquery.min.js"></script>
<script type="text/javascript" src='jquery.ZResize.js'></script>
<script type="text/javascript">
new ZResize({
stage: "#mydiv", //舞台
item: '#div1', //可缩放的类名
})
</script>
</body>
</html>
找控件是最直接的方法。放三个div，左面一个，右面一个，中间一个。中间的涂黑，就是那个黑条了。
然后在中间的div上做几个js事件，就行了。鼠标按下、鼠标经过、鼠标抬起。
然后去修改左面和右面的div的宽度。
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default3.aspx.cs" Inherits="Default3" %>
<!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/htmlcharset=UTF-8"/>
<title>Border Layout - jQuery EasyUI Demo</title>
<link rel="stylesheet" type="text/css" href="jquery-easyui-1.3.6/themes/default/easyui.css"/>
<script type="text/javascript" src="jquery-easyui-1.3.6/jquery.min.js"></script>
<script type="text/javascript" src="jquery-easyui-1.3.6/jquery.easyui.min.js"></script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<div class="easyui-layout" style="height: 800px" id="pop" runat="server">
<div data-options="region:'west',split:true" title="目录结构" style="width: 325px">
<asp:TreeView ID="TreeView1" runat="server" OnSelectedNodeChanged="TreeView1_SelectedNodeChanged"
Width="164px">
<Nodes>
<asp:TreeNode Text="aaaaaaa" Value="1"></asp:TreeNode>
<asp:TreeNode Text="bbbbbbb" Value="2"></asp:TreeNode>
<asp:TreeNode Text="ccccccc" Value="3"></asp:TreeNode>
<asp:TreeNode Text="ddddddd" Value="4"></asp:TreeNode>
<asp:TreeNode Text="eeeeeee" Value="5"></asp:TreeNode>
<asp:TreeNode Text="fffffff" Value="6"></asp:TreeNode>
<asp:TreeNode Text="ggggggg" Value="7"></asp:TreeNode>
</Nodes>
</asp:TreeView>
</div>
<div data-options="region:'center',title:'数据手册'" style="background: #fafafaoverflow: hidden">
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</div>
</div>
</ContentTemplate>
</asp:UpdatePanel>
</div>
</form>
</body>
</html>
通过参数sizeLeft, sizeRight, sizeTop, sizeBottom (定义一个且只能是一个来设置初始的分栏位置)
通过参数minLeft, minRight, minTop, minBottom, maxLeft, maxRight, maxTop, maxBottom来设置每个栏最小和最大的尺寸，是值得时候注意不要互相冲突或与父窗体冲突。比如一个固定宽度为200px的分栏，不能同时定义minLeft:120和minRight:120，因为这样总宽度已经超过200px了。
![C语言 对数组元素b[4]地址的引用非法的为什么是B啊](/aiimages/C%E8%AF%AD%E8%A8%80+%E5%AF%B9%E6%95%B0%E7%BB%84%E5%85%83%E7%B4%A0b%5B4%5D%E5%9C%B0%E5%9D%80%E7%9A%84%E5%BC%95%E7%94%A8%E9%9D%9E%E6%B3%95%E7%9A%84%E4%B8%BA%E4%BB%80%E4%B9%88%E6%98%AFB%E5%95%8A.png)
