C# 写入文件流

 1 /// <summary>
 2 /// 写入文件流
 3 /// </summary>
 4 /// <param name="filePath">文件路径（包括文件名和后缀）</param>
 5 /// <param name="data">要存储的数据</param>
 6 public static void WriteFileStream(string filePath, byte[] data)
 7 {
 8     Stream source = null;
 9     try
10     {
11         // 判断文件夹是否存在
12         string directoryName = Path.GetDirectoryName(filePath);
13         if (!string.IsNullOrEmpty(directoryName))
14         {
15             if (!Directory.Exists(directoryName))
16             {
17                 Directory.CreateDirectory(directoryName);
18             }
19         }
20         // 覆盖文件
21         if (File.Exists(filePath))
22         {
23             File.Delete(filePath);
24         }
25         // 写入文件
26         source = new FileStream(filePath, FileMode.Create);
27         source.Write(data, 0, data.Length);
28     }
29     catch (Exception)
30     {
31         throw;
32     }
33     finally
34     {
35         if (source != null)
36         {
37             source.Close();
38         }
39     }
40 }