C# 常用的工具类

编码解码、图片与byte[]、日志文件写入和读取

 

 

 1       /// <summary>
 2         /// 将字符串编码为Base64字符串
 3       /// </summary>
 4         /// <param name="str"></param>
 5         /// <returns></returns>
 6         public static string Base64Encode(string str)
 7         {
 8             byte[] barray;
 9             barray = Encoding.Default.GetBytes(str);
10             return Convert.ToBase64String(barray);
11         } 
12 
13         /// <summary>
14         /// 将Base64字符串解码为普通字符串
15       /// </summary>
16         /// <param name="str"></param>
17         /// <returns></returns>
18         public static string Base64Decode(string str)
19         {
20             byte[] barray;
21 
22             try
23             {
24                 barray = Convert.FromBase64String(str);
25                 return Encoding.Default.GetString(barray);
26             }
27 
28             catch
29             {
30                 return str;
31             }
32 
33         }

编码解码