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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>ajax()注册提交</title>
</head>
<body>
<h2>用户注册</h2>
<p>账号
<input type="text" name="name" id="name">
<span></span>
</p>
<p>密码
<input type="password" name="password">
</p>
<button>提交</button>
</body>
</html>
<script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
<script type="text/javascript">
$('#name').blur(function() {
$.ajax({
url: 'api/info.php',
type: 'GET',
async: true,
data: {'name': $('#name').val()},
success: function(msg, status, xhr){
$('p span').empty();
$('p span').append($(msg));
}
})
})
</script>点击 "运行实例" 按钮查看在线实例
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