###**1. 建立用户表存储注册的用户**
###**2. 实现注册功能，当注册成功之后，把用户email插入邮件队列表中**
###**3. 使用ajax触发队列**
```
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>用户注册</title>
<!-- bootstrap文件需要自己下载引用 -->
<link rel="stylesheet" type="text/css" href="./css/bootstrap.min.css" media="screen" title="no title" charset="utf-8">
<script src="./js/jquery-3.0.0.min.js" type="text/javascript" charset="utf-8"></script>
<style media="screen">
body {
padding:100px;
}
</style>
<script type="text/javascript">
$.post('do_queue.php');
</script>
</head>
<body>
<?php
$link = mysql_connect("localhost", "root", "root");
mysql_select_db("muke");
mysql_query("set names utf-8");
if (isset($_POST['reg'])) {
$userEmail = htmlspecialchars(trim($_POST['user_email']), ENT_QUOTES);
$userPwd = htmlspecialchars(trim($_POST['user_password']), ENT_QUOTES);
if (!empty($userEmail) && !empty($userPwd)) {
$sql = "SELECT * FROM users WHERE user_email = ''";
$res = mysql_query($sql);
if (mysql_fetch_row($res)) {
echo "<script>alert('用户已经存在');</script>";
} else {
$sql = "INSERT INTO users(user_email, user_password) VALUES('$userEmail', '$userPwd')";
$res = mysql_query($sql);
if ($res !== false) {
$sql = "INSERT INTO task_list(user_email, status, create_time, update_time) VALUES('$userEmail', 0, '" . date("Y-m-d H:i:s") . "', '" . date("Y-m-d H:i:s") . "')";
$res = mysql_query($sql);
if($res !== false) {
?>
<script type="text/javascript">
$.post('do_queue.php');
</script>
<?php
}
} else {
echo "<script>alert('用户注册失败');</script>";
}
}
}
}
?>
<div class="container">
<div class="row">
<form action="" method="post" class="form-horizontai">
<div class="form-group row">
<label class="control-label col-md-2 col-sm-2">用户Email：</label>
<div class="col-md-4 col-sm-4">
<input type="text" name="user_email" value="" class="form-control">
</div>
</div>
<div class="form-group row">
<label class="control-label col-md-2 col-sm-2">密码：</label>
<div class="col-md-4 col-sm-4">
<input type="text" name="user_password" value="" class="form-control">
</div>
</div>
<div class="form-group row">
<div class="col-md-4 col-md-offset-2 col-sm-offset-2">
<input type="submit" name="reg" value="注册" class="btn btn-primary">
</div>
</div>
</form>
</div>
</div>
</body>
</html>
```
