C# Base64编码

复制代码 代码如下:

byte[] bytes = Encoding.Default.GetBytes("helloworld");
string str = Convert.ToBase64String(bytes);
Console.WriteLine(str);
Console.ReadLine();
//base 64 decode
bytes = Convert.FromBase64String(str);
Console.WriteLine(Encoding.Default.GetString(bytes));
Console.ReadLine();