.net Base64加密解密(和js的Base64加密解密可以互用)

/// <summary>
/// Base64加密
/// </summary>
/// <param name="code">明文</param>
/// <returns>密文</returns>
public static string EncodeBase64(string code)
{
string encode = "";
try
{
byte[] bytes = Encoding.GetEncoding(Encoding.UTF8.CodePage).GetBytes(code);
encode = Convert.ToBase64String(bytes);
}
catch
{
encode = code;
}
return encode;
}

/// <summary>
/// Base64解密
/// </summary>
/// <param name="code">密文</param>
/// <returns>明文</returns>
public static string DecodeBase64(string code)
{
string decode = "";
try
{
byte[] bytes = Convert.FromBase64String(code);
decode = Encoding.GetEncoding(Encoding.UTF8.CodePage).GetString(bytes);
}
catch
{
decode = code;
}
return decode;
}