C#中string与byte[]的转换帮助类-.NET教程,C#语言 |
时间:2015-01-29 来源:互联网 作者:佚名 |
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主要实现了以下的函数
代码中出现的sidle是我的网名。
/**//* * @author wuerping * @version 1.0 * @date 2004/11/30 * @description: */ using system; using system.text; namespace sidlehelper { /**//// <summary> /// summary description for strhelper. /// 命名缩写: /// str: unicode string /// arr: unicode array /// hex: 二进制数据 /// hexbin: 二进制数据用ascii字符表示 例 字符1的hex是0x31表示为hexbin是 31 /// asc: ascii /// uni: unicode /// </summary> public sealed class strhelper { hex与hexbin的转换#region hex与hexbin的转换 public static void hexbin2hex(byte[] bhexbin, byte[] bhex, int nlen) { for(int i=0; i<nlen/2; i++) { if(bhexbin[2*i] <0x41) { bhex[i] = convert.tobyte(((bhexbin[2*i] - 0x30)<<4) & 0xf0); } else { bhex[i] = convert.tobyte(((bhexbin[2*i] - 0x37)<<4) & 0xf0); }
if(bhexbin[2*i+1] <0x41) { bhex[i] |= convert.tobyte((bhexbin[2*i+1] - 0x30) & 0x0f); } else { bhex[i] |= convert.tobyte((bhexbin[2*i+1] - 0x37) & 0x0f); } } } public static byte[] hexbin2hex(byte[] bhexbin, int nlen) { if(nlen%2 !=0) return null; byte[] bhex = new byte[nlen/2]; hexbin2hex(bhexbin, bhex, nlen); return bhex; } public static void hex2hexbin(byte[] bhex, byte[] bhexbin, int nlen) { byte c; for(int i=0;i<nlen;i++) { c = convert.tobyte((bhex[i]>>4) & 0x0f); if(c < 0x0a) { bhexbin[2*i] = convert.tobyte(c + 0x30); } else { bhexbin[2*i] = convert.tobyte(c + 0x37); } c = convert.tobyte(bhex[i]&0x0f); if(c < 0x0a) { bhexbin[2*i+1] = convert.tobyte(c + 0x30); } else { bhexbin[2*i+1] = convert.tobyte(c + 0x37); } } } public static byte[] hex2hexbin(byte[] bhex, int nlen) { byte[] bhexbin = new byte[nlen*2]; hex2hexbin(bhex, bhexbin, nlen); return bhexbin; } #endregion
数组和字符串之间的转化#region 数组和字符串之间的转化 public static byte[] str2arr(string s) { return (new unicodeencoding()).getbytes(s); } public static string arr2str(byte[] buffer) { return (new unicodeencoding()).getstring(buffer, 0, buffer.length); }
public static byte[] str2ascarr(string s) { return system.text.unicodeencoding.convert(system.text.encoding.unicode, system.text.encoding.ascii, str2arr(s)); }
public static byte[] str2hexascarr(string s) { byte[] hex = str2ascarr(s); byte[] hexbin = hex2hexbin(hex, hex.length); return hexbin; } public static string ascarr2str(byte[] b) { return system.text.unicodeencoding.unicode.getstring( system.text.asciiencoding.convert(system.text.encoding.ascii, system.text.encoding.unicode, b) ); }
public static string hexascarr2str(byte[] buffer) { byte[] b = hex2hexbin(buffer, buffer.length); return ascarr2str(b); } #endregion } }
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