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老师批语：
在线相册：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>在线相册</title>
<style>
.wrap{
width: 500px;
background: lightskyblue;
margin: auto;
padding: 16px;
}
h2{
text-align: center;
}
</style>
</head>
<body>
<div class="wrap">
<h2>在线相册管理器</h2>
<p>
<label for="text">请输入图片地址：</label>
<input type="text" id="text" placeholder="图片地址">
</p>
<p>请选择图片类型:
<input type="radio" id="rect" name="border" value="0" checked><label for="rect">直角</label>
<input type="radio" id="radius" name="border" value="10%"><label for="radius">圆角</label>
<input type="radio" id="circle" name="border" value="50%"><label for="circle">圆型</label>
</p>
<p>图片是否添加阴影:
<select name="shadow">
<option value="0" selected>不添加</option>
<option value="1">添加</option>
</select>
</p>
<p><button class="add">添加图片</button></p>
</div>
<div class="main">
<ul></ul>
</div>
</div>
</body>
</html>点击 "运行实例" 按钮查看在线实例
$post() 登陆验证功能：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>4.Ajax_POST</title>
</head>
<body>
<form action="api/check.php" method="post">
<fieldset>
<legend>用户登录</legend>
<p>
<label for="email">邮箱:</label>
<input type="email" name="email" id="email">
</p>
<p>
<label for="password">邮箱:</label>
<input type="password" name="password" id="password">
</p>
<p>
<button>登录</button>
<span id="tips" style="font-size:1.2em;font-weight: bolder;color:red"></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提交的地址
var url = 'api/user.php?m=login'
//2.要提交到服务器的数据
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('登录成功,正在跳转中...')
setTimeout(function(){
location.href = 'api/index.php'
},2000)
} else {
$('#tips').text('邮箱或密码错误,请重新输入...')
$('#email').focus()
setTimeout("$('#tips').empty()",2000)
}
}
//4.设置返回的数据格式为: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>点击 "运行实例" 按钮查看在线实例
手写图片：
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