1、SHA1加密
using System.Security;
using System.Security.Cryptography;
public static string Sha1Signature(string str)
{
var buffer = Encoding.UTF8.GetBytes(str);
var data = SHA1.Create().ComputeHash(buffer);
StringBuilder sub = new StringBuilder();
foreach (var t in data)
{
sub.Append(t.ToString("x2"));
}
string keyWord = sub.ToString();
string keyWord1 = keyWord.Substring(0, 4);
string keyWord2 = keyWord.Substring(36, 4);
string keyWord3 = keyWord1 + keyWord2;
return keyWord3;
}
2、c#獲取時間方法
DateTime.Now.ToString("yyyy-MM-dd"); // 2008-09-04