摘要：
protected void Page_Load(object sender, EventArgs e) { string checkCode = CreateCode(4); Session["CheckCode"] = checkCode; CreateImage(checkCode); } /*产生验证码*/ public string CreateCode(int codeLength) { string strchar = "1,2,3,4,5,6,7,8,9,0,a,b,c,d,e,f,g... 阅读全文
