加载本地图片

作者：追风剑情 发布于：2022-2-24 12:26 分类：C# 

  1. //加载本地图片
  2. public static Bitmap LoadBitmap(string filePath)
  3. {
  4. 	FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read);
  5. 	byte[] bytes = new byte[fs.Length];
  6. 	fs.Read(bytes, 0, bytes.Length);
  7. 	fs.Close();
  8.  
  9. 	Bitmap bitmap = null;
  10. 	Stream stream = null;
  11. 	try
  12. 	{
  13. 		stream = new MemoryStream(bytes);
  14. 		stream.Seek(0, SeekOrigin.Begin);
  15. 		bitmap = new Bitmap(stream);
  16. 	}
  17. 	catch(ArgumentException ex)
  18. 	{
  19. 		//stream不是图片或为空时引发此异常
  20. 		Console.WriteLine("\r\n{0};{1}", ex.Message, filePath);
  21. 	}
  22. 	finally
  23. 	{
  24. 		stream.Close();
  25. 		stream = null;
  26. 		bytes = null;
  27. 		GC.Collect();
  28. 	}
  29. 	return bitmap;
  30. }
  31.  
  32. //加载本地图片
  33. public static Image LoadImage(string filePath)
  34. {
  35. 	FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read);
  36. 	byte[] bytes = new byte[fs.Length];
  37. 	fs.Read(bytes, 0, bytes.Length);
  38. 	fs.Close();
  39.  
  40. 	Image image = null;
  41. 	Stream stream = null;
  42. 	try
  43. 	{
  44. 		stream = new MemoryStream(bytes);
  45. 		stream.Seek(0, SeekOrigin.Begin);
  46. 		image = Image.FromStream(stream);
  47. 	}
  48. 	catch (ArgumentException ex)
  49. 	{
  50. 		//stream不是图片或为空时引发此异常
  51. 		Console.WriteLine("\r\n{0};{1}", ex.Message, filePath);
  52. 	}
  53. 	finally
  54. 	{
  55. 		stream.Close();
  56. 		stream = null;
  57. 		bytes = null;
  58. 		GC.Collect();
  59. 	}
  60. 	return image;
  61. }

标签: C#

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