/// <summary>
/// 校验用户邮箱
/// </summary>
private void CheckUserMail(HttpContext context)
{
string userMail = context.Request["userMail"];
if (userManager.CheckUserMail(userMail))
{
context.Response.Write("邮箱已经存在");
}
else
{
context.Response.Write("邮箱可以注册");
}
}