图片和字符转换一版用在socket进行通信之间。现在我就把我写的和测试整理出来和大家分享下
1:图片转换成16进制字符
1 FileStream fs = new FileStream(lbl_show.Text, FileMode.Open, FileAccess.Read); 2 BinaryReader br = new BinaryReader(fs); 3 StreamWriter sw = new StreamWriter(tb_position.Text); 4 int length = (int)fs.Length; 5 StringBuilder sb = new StringBuilder(); 6 while (length > 0) 7 { 8 byte tempByte = br.ReadByte(); 9 string tempStr = Convert.ToString(tempByte, 16); 10 if (tempStr.Length <= 1) 11 { 12 tempStr = "0" + tempStr; 13 } 14 sb.Append(tempStr); 15 length--; 16 } 17 sw.Write(sb.ToString()); 18 fs.Close(); 19 br.Close(); 20 sw.Close(); 21 MessageBox.Show("转换成功");
注释1:lbl_show.Text表示图片存在的位置
注释2:tb_position.Text表示字符保存位置
注释3:string tempStr = Convert.ToString(tempByte, 16); 字节转换成16进制字符串
2:16进制字符转换成图片
1 FileStream fs = new FileStream("Imgs//test.jpg", FileMode.Create, FileAccess.Write); 2 BinaryWriter bw = new BinaryWriter(fs); 3 StreamReader sr = new StreamReader(lbl_text.Text); 4 while (sr.Peek() != -1) 5 { 6 string tempStr = sr.ReadToEnd(); 7 if (tempStr.Contains("7D01") || tempStr.Contains("7D02")) 8 { 9 tempStr = tempStr.Replace("7D02", "7E"); 10 tempStr = tempStr.Replace("7D01", "7D"); 11 } 12 int tlenth = tempStr.Length / 2; 13 int pos = 0; 14 string[] str = new string[tlenth]; 15 for (int i = 0; i < tlenth; i++) 16 { 17 str[i] = tempStr.Substring(pos, 2); 18 pos = pos + 2; 19 string cc = str[i]; 20 byte tempByte = Convert.ToByte(str[i], 16); 21 bw.Write(tempByte); 22 } 23 } 24 fs.Close(); 25 bw.Close(); 26 sr.Close(); 27 this.pictureBox1.Image = Image.FromFile("Imgs//test.jpg");
注释1:Imgs//test.jpg 表示转换图片保存位置
注释2:lbl_text.Text表示要转换字符的位置
注释3: byte tempByte = Convert.ToByte(str[i], 16);16进制字符转成字符
运行效果
时间: 2024-10-13 22:18:03