protected void Button1_Click(object sender, EventArgs e)
{
string username = Session["username"].ToString();
string password = TextBox1.Text;
string email = TextBox4.Text;
string question = TextBox2.Text;
string answer = TextBox3.Text;
Userinfo us = new Userinfo();
int i = us.updateUser(username, password, email, question, answer);
if (i > 0)
{
Response.Write("<script>alert('修改成功');</script>");
}
}