jquery基础

1、



<!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>无标题文档</title>
<style>
p{

display:none;

}


</style>
<script language="javascript" type="text/javascript" src="../js/jquery.js">
</script>
<script language="javascript" type="text/javascript" src="window-center.js">
</script>
<script language="javascript" type="text/javascript" src="window-left.js">
</script>
<script language="javascript" type="text/javascript" src="window-right.js">
</script>
<script language="javascript" type="text/javascript" src="window-left-top.js">
</script>
<script language="javascript" type="text/javascript" src="window-right-top.js">
</script>

<link type="text/css" rel="stylesheet" href="window-center.css">
<script language="javascript" type="text/javascript">
$(document).ready(function(){
var windowHeight=$(window).height();
var windowWidth=$(window).width();
var documentHeight=$(document).height();
var documentWidth=$(document).width();

//利用toggle方法显示和隐藏

$("#btn_center").click(function(){

if(windowHeight<documentHeight){
$(window).scroll(function(){
popCenterWindow();
});
}else{
popCenterWindow();
}

});
$("#btn_left").click(function (){
initLeft();
popCenterWindowLeft();

});
$("#btn_right").click(function (){
initRight();
popCenterWindowRight();

});
$("#btn_left-top").click(function (){
initLefttop();
popCenterWindowLefttop();

});
$("#btn_right-top").click(function (){
initRighttop();
popCenterWindowRighttop();

});
});

</script>


</head>

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<input type="button" id="btn_center" value="弹出居中窗口">
<input type="button" id="btn_left" value="弹出居左下角窗口">
<input type="button" id="btn_right" value="弹出居右下角窗口">
<input type="button" id="btn_left-top" value="弹出居左上角窗口">
<input type="button" id="btn_right-top" value="弹出居右上角窗口">
<div class="window" id="center">

<div class="title"><img src="1.gif">优快云欢迎你-居中窗口</div>
<div class="content">3gput.com你好</div>

</div>
<div class="window" id="right">

<div class="title"><img src="1.gif">优快云欢迎你-居左窗口</div>
<div class="content">3gput.com你好</div>

</div>
<div class="window" id="left">

<div class="title"><img src="1.gif">优快云欢迎你-居右窗口</div>
<div class="content">3gput.com你好</div>

</div>
<div class="window" id="right-top">

<div class="title"><img src="1.gif">优快云欢迎你-居右上窗口</div>
<div class="content">3gput.com你好</div>

</div>
<div class="window" id="left-top">

<div class="title"><img src="1.gif">优快云欢迎你-居左上窗口</div>
<div class="content">3gput.com你好</div>

</div>
</body>
</html>

2、window-center.js

//定义一些量变


//获得窗口的高度
var windowHeight;
//获得窗口的宽度
var windowWidth;

//获得弹窗的高度
var popHeight;
//获得弹窗的宽度
var popWidth;

//获取滚动条滚动的宽度
var scrollTop;
//获取滚动条滚动的宽度
var scrollLeft;

//延迟时间
var time;

function init(){
windowHeight=$(window).height();
windowWidth=$(window).width();

popHeight=$(".window").height();
popWidth=$(".window").width();

scrollTop=$(window).scrollTop();
scrollLeft=$(window).scrollLeft();
}

//关闭窗口


function closeWindow(){
//找到X的图片,家单击事件,并且关闭窗口
$(".title img").click(function(){

$(this).parent().parent().hide("slow");
});
}


//定义弹出注重窗口的方法

function popCenterWindow(){
clearTimeout(time);
time=setTimeout(function(){
init();
//计算弹出窗口的左上角Y的偏移量
var popY=(windowHeight-popHeight)/2+scrollTop;
var popX=(windowWidth-popWidth)/2+scrollLeft;

//关闭窗口
closeWindow();

//设定窗口的位置
//$("#center").css("top",popY).css("left",popX).show("slow");

$("#center").animate({top:popY,left:popX},500).show();

},80);
}




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