using System;
using System.Text;

namespace CsharpHttpHelper.Helper
{
	/// <summary>
	/// Base64帮助类
	/// 编码人：苏飞
	/// </summary>
	public class Base64Helper
	{
		/// <summary>
		/// 将Base64编码解析成字符串
		/// </summary>
		/// <param name="strbase">要解码的string字符</param>
		/// <param name="encoding">字符编码方案</param>
		/// <returns></returns>
		public static string Base64ToString(string strbase, Encoding encoding)
		{
			byte[] bytes = Convert.FromBase64String(strbase);
			return encoding.GetString(bytes);
		}

		/// <summary>
		/// 将字节数组为Base64编码
		/// </summary>
		/// <param name="bytebase">要编码的byte[]</param>
		/// <returns></returns>
		public static string StringToBase64(byte[] bytebase)
		{
			return Convert.ToBase64String(bytebase);
		}

		/// <summary>
		/// 将字符串转为Base64编码
		/// </summary>
		/// <param name="str">要编码的string字符</param>
		/// <param name="encoding">字符编码方案</param>
		/// <returns></returns>
		public static string StringToBase64(string str, Encoding encoding)
		{
			byte[] bytes = encoding.GetBytes(str);
			return Convert.ToBase64String(bytes);
		}
	}
}