年底了，先预祝各位朋友新年快乐。最近这段时间工作比较忙，晚上就一直在写一个关于

/// 根据QQ号码和验证码加密密码

///

/// QQ号码 /// QQ密码 /// 验证码 /// 密码密文

public static string GetPassword(string qqNum, string password, string verifycode)

{

//uin为QQ号码转换为16位的16进制

int qq;

int.TryParse(qqNum, out qq);

qqNum = qq.ToString(“x”);

qqNum = qqNum.PadLeft(16, ‘0’);

String P = hexchar2bin(md5(password));

String U = md5(P + hexchar2bin(qqNum)).ToUpper();

String V = md5(U + verifycode.ToUpper()).ToUpper();

return V;

}

public static string md5(string input)

{

byte[] buffer = MD5.Create().ComputeHash(Encoding.GetEncoding(“ISO-8859-1”).GetBytes(input));

return binl2hex(buffer);

}

public static string binl2hex(byte[] buffer)

{

StringBuilder builder = new StringBuilder();

for (int i = 0; i < buffer.Length; i++) { builder.Append(buffer[i].ToString("x2")); } return builder.ToString(); } public static string hexchar2bin(string passWord) { StringBuilder builder = new StringBuilder(); for (int i = 0; i < passWord.Length; i = i + 2) { builder.Append(Convert.ToChar(Convert.ToInt32(passWord.Substring(i, 2), 16))); } return builder.ToString(); } }[/code]登陆成功返回的内容

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