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实例
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>ajax</title>
</head>
<body>
<form action="api/check.php" method="post">
<fieldset>
<legend>用户登陆</legend>
<p>
<label for="email">邮箱：</label>
<input type="email" name="email" id="email">
</p>
<p>
<label for="password">密码：</label>
<input type="password" name="password" id="password">
</p>
<p>
<button ">登陆</button>
<span id="tips" style="color:red; font-size: 1.2em;font-weight: bolder;"></span>
</p>
</fieldset>
</form>
</body>
</html>
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript">
$('button:first').click(function(){
//1.ajax-post提交地址
var url ='api/user.php?m=login'
//2.提交服务器数据
var data={
"email":$('#email').val(),
"password":$('#password').val()
}
//3.设置执行成功的回调函数
var success= function(res){
if (res==1) {
$('#tips').text('登陆成功跳转中....')
setTimeout(function(){
location.href='api/index.php'
},2000)
}else{
$('#tips').text('邮箱密码不正确，请重新输入....')
$('#email').focus()
setTimeout("$('#tips').empty()",2000)
}
}
//4.设置返回数据格式json
var dataType='json'
//5.调用全局函数$.post()执行post请求
$.post(url,data,success,dataType)
return false
})
</script>
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>在线相册</title>
<link rel="stylesheet" type="text/css" href="css/style.css">
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript" src="js/demo.js"></script>
</head>
<body>
<div class="wrap">
<div class="header">
<h2>在线相册</h2>
<p>
<label for="img_url">输入图片地址： <input type="text" name="img_url" id="img_url" value="images/boy.jpg"></label>
</p>
<p>
产品类型：<input type="radio" name="type" value="0" checked="">矩形
<input type="radio" name="type" value="20%">圆角
<input type="radio" name="type" value="50%">圆形
</p>
<p>
阴影：<select name="img_shadow" id="img_shadow">
<option value="1" selected="">添加阴影</option>
<option value="0">不添加阴影</option>
</select>
</p>
<p><button class="add">添加</button></p>
</div>
<div class="main"><ul></ul></div>
</div>
</body>
</html>
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