using System; using System.Collections.Generic; using System.Drawing; using System.IO; using System.Linq; using System.Text; #region << 版 本 注 释 >> /*-------------------------------------------------------------------- * 版权所有 (c) 2024 WenJY 保留所有权利。 * CLR版本:4.0.30319.42000 * 机器名称:LAPTOP-E0N2L34V * 命名空间:SlnMesnac.Common * 唯一标识:496f8d2b-70e3-4a05-ae18-a9b0fcd06b82 * * 创建者:WenJY * 电子邮箱:wenjy@mesnac.com * 创建时间:2024-03-27 21:58:35 * 版本:V1.0.0 * 描述: * *-------------------------------------------------------------------- * 修改人: * 时间: * 修改说明: * * 版本:V1.0.0 *--------------------------------------------------------------------*/ #endregion << 版 本 注 释 >> namespace SlnMesnac.Common { public class StringChange { /// /// 将字符串强制转换成int,转换失败则返回0 /// /// /// public int ParseToInt(string str) { int returnInt = 0; if (str == null || str.Trim().Length < 1) { return returnInt; } if (int.TryParse(str, out returnInt)) { return returnInt; } else { return 0; } } /// /// char数组转Array /// /// /// /// public string CharArrayToString(char[] cha, int len) { string str = ""; for (int i = 0; i < len; i++) { str += string.Format("{0}", cha[i]); } return str; } public string bytesToHexStr(byte[] bytes, int iLen)//e.g. { 0x01, 0x01} ---> " 01 01" { string returnStr = ""; if (bytes != null) { for (int i = 0; i < iLen; i++) { returnStr += bytes[i].ToString("X2"); } } return returnStr; } public byte[] HexStrTorbytes(string strHex)//e.g. " 01 01" ---> { 0x01, 0x01} { strHex = strHex.Replace(" ", ""); if ((strHex.Length % 2) != 0) strHex += " "; byte[] returnBytes = new byte[strHex.Length / 2]; for (int i = 0; i < returnBytes.Length; i++) returnBytes[i] = Convert.ToByte(strHex.Substring(i * 2, 2), 16); return returnBytes; } public string StringToHexString(string s, Encoding encode) { byte[] b = encode.GetBytes(s); //按照指定编码将string编程字节数组 string result = string.Empty; for (int i = 0; i < b.Length; i++) //逐字节变为16进制字符,以%隔开 { result += "%" + Convert.ToString(b[i], 16); } return result; } public string HexStringToString(string hs, Encoding encode) { //以%分割字符串,并去掉空字符 string[] chars = hs.Split(new char[] { '%' }, StringSplitOptions.RemoveEmptyEntries); byte[] b = new byte[chars.Length]; //逐个字符变为16进制字节数据 for (int i = 0; i < chars.Length; i++) { b[i] = Convert.ToByte(chars[i], 16); } //按照指定编码将字节数组变为字符串 return encode.GetString(b); } public byte[] Swap16Bytes(byte[] OldU16) { byte[] ReturnBytes = new byte[2]; ReturnBytes[1] = OldU16[0]; ReturnBytes[0] = OldU16[1]; return ReturnBytes; } /// 64Base码 /// 保存路径 /// 文件名称 /// public bool Base64ToImage(string strbase64, string path, string filename) { bool Flag = false; try { //base64编码的文本 转为 图片 //图片名称 byte[] arr = Convert.FromBase64String(strbase64);//将指定的字符串(它将二进制数据编码为 Base64 数字)转换为等效的 8 位无符号整数数组。 using (MemoryStream ms = new MemoryStream(arr)) { Bitmap bmp = new Bitmap(ms);//加载图像 if (!Directory.Exists(path))//判断保存目录是否存在 { Directory.CreateDirectory(path); } bmp.Save((path + "\\" + filename + ".png"), System.Drawing.Imaging.ImageFormat.Png);//将图片以JPEG格式保存在指定目录(可以选择其他图片格式) ms.Close();//关闭流并释放 if (File.Exists(path + "\\" + filename + ".png"))//判断是否存在 { Flag = true; } } } catch (Exception ex) { Console.WriteLine("图片保存失败:" + ex.Message); } return Flag; } /// /// 获取时间戳 /// /// public long GetTimeStamp() { TimeSpan ts = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0); return Convert.ToInt64(ts.TotalSeconds); } public byte[] ConvertFloatToINt(byte[] floatBytes) { byte[] intBytes = new byte[floatBytes.Length / 2]; for (int i = 0; i < intBytes.Length; i++) { intBytes[i] = floatBytes[i * 2]; } return intBytes; } //CRC异或校验 public byte CalculateVerify(byte[] pMessage, int iLength) { UInt16 i; byte iVerify = 0; iVerify = pMessage[0]; for (i = 1; i < iLength; i++) { iVerify = (byte)(iVerify ^ pMessage[i]); } return iVerify; } public int HexStringToNegative(string strNumber) { int iNegate = 0; int iNumber = Convert.ToInt32(strNumber, 16); if (iNumber > 127) { int iComplement = iNumber - 1; string strNegate = string.Empty; char[] binchar = Convert.ToString(iComplement, 2).PadLeft(8, '0').ToArray(); foreach (char ch in binchar) { if (Convert.ToInt32(ch) == 48) { strNegate += "1"; } else { strNegate += "0"; } } iNegate = -Convert.ToInt32(strNegate, 2); } return iNegate; } } }