博客园-Wind-Eagle-最新评论

Re:用C#创建一个封装Google Map API的GoogleMap Web服务器控件(二)

shp_yt — Fri, 21 May 2010 08:19:18 GMT

封装的非常好，GoogleInfoWindow,GoogleMarker类及相应的集合类,并给GoogleMap类添加相应的集合属性及其他属性我在你的博客中没有找到.能否发份给我，谢谢。shp_yt@163.com

shp_yt 2010-05-21 16:19 发表评论

Re:UTF-8, Unicode, GB2312三种编码方式解析, 深入研究汉字编码

缤纷 — Mon, 12 Apr 2010 14:49:34 GMT

好东西，收藏了

缤纷 2010-04-12 22:49 发表评论

Re:C#中判断字符是否为中文

Andrew Yin — Fri, 09 Apr 2010 10:25:01 GMT

public static int ChineseLetterCode(string input, int index) { var chfrom = Convert.ToInt32("4e00", 16); //范围（0x4e00～0x9fff）转换成int（chfrom～chend） var chend = Convert.ToInt32("9fa5", 16); if (input != "") { var code = Char.ConvertToUtf32(input, index); return code >= chfrom && code <= chend ? code : 0; } return 0; } public static string ChineseLetterHexCode(string input, int index) { var code = ChineseLetterCode(input, index); return code != 0 ? code.ToString("X4") : string.Empty; } public static string ChineseLetterFromCode(int code) { var chfrom = Convert.ToInt32("4e00", 16); //范围（0x4e00～0x9fff）转换成int（chfrom～chend） var chend = Convert.ToInt32("9fa5", 16); //return code >= chfrom && code <= chend ? Char.ConvertFromUtf32(code) : string.Empty; if (code >= chfrom && code <= chend) { var gb = System.Text.Encoding.GetEncoding("Unicode"); var b = new[] {(byte) (code%0x100), (byte) (code/0x100)}; return gb.GetString(b); } return string.Empty; } public static string ChineseLetterFromHexCode(string hexCode) { var code = int.Parse(hexCode, NumberStyles.HexNumber); return ChineseLetterFromCode(code); } } }

Andrew Yin 2010-04-09 18:25 发表评论

Re:C#中判断字符是否为中文

Andrew Yin — Fri, 09 Apr 2010 10:24:48 GMT

using System; using System.Collections.Generic; using System.Globalization; namespace Encoding { internal class Program { private static void Main(string[] args) { var gb = System.Text.Encoding.GetEncoding("Unicode"); Console.WriteLine(gb.GetBytes("草")); gb = System.Text.Encoding.GetEncoding("UTF-8"); Console.WriteLine(gb.GetBytes("草")); gb = System.Text.Encoding.GetEncoding("GB2312"); Console.WriteLine(gb.GetBytes("啊")); Console.WriteLine(System.Text.Encoding.GetEncoding("Unicode").GetString( Utf8_2_Unicode(System.Text.Encoding.GetEncoding("UTF-8").GetBytes("草xdvsd泥56765@@@@@@@)^%&^%&^$#@#!#$马")))); Console.WriteLine(IsChineseLetter("草泥马", 0)); Console.WriteLine(ChineseLetterCode("草泥马", 0)); Console.WriteLine(ChineseLetterFromCode(ChineseLetterCode("草泥马", 0))); //http://qkzz.net/article/3d697483-a5ae-4b50-9ae9-45dc6dd26141.htm //http://topic.csdn.net/u/20090617/18/1907627e-ce38-4ae5-9755-1cc349a4ed1a.html for (byte i = 0xb0; i < 0xff; i++) { for (byte j = 0xa1; j < 0xfe; j++) { Console.Write(gb.GetString(new[] {i, j})); } } for (var i = 19968; i <= 40959; i++) { Console.Write(ChineseLetterFromCode(i)); } Console.Read(); } ///

/// UTF8 汉字字节流转成 Unicode 汉字字节流 ///

/// /// public static byte[] Utf8_2_Unicode(byte[] input) { //Array.Reverse(input); var ret = new List(); for (var i = 0; i < input.Length; i++) { if (input[i] >= 240) // "11110111" { // ReSharper disable RedundantAssignment i += 3; // ReSharper restore RedundantAssignment throw new Exception("四字节的 UTF-8 字符不能转换成两字节的 Unicode 字符！"); } // ReSharper disable RedundantIfElseBlock else if (input[i] >= 224) // ReSharper restore RedundantIfElseBlock { ret.Add((byte) ((input[i + 2] & 63) | ((input[i + 1] & 3) << 6))); ret.Add((byte) ((input[i] << 4) | ((input[i + 1] & 60) >> 2))); i += 2; } else if (input[i] >= 192) { ret.Add((byte) ((input[i + 1] & 63) | ((input[i] & 3) << 6))); ret.Add((byte) ((input[i] & 28) >> 2)); i += 1; } else { ret.Add(input[i]); ret.Add(0); } } return ret.ToArray(); } public static bool IsChineseLetter(string input, int index) { var chfrom = Convert.ToInt32("4e00", 16); //范围（0x4e00～0x9fff）转换成int（chfrom～chend） var chend = Convert.ToInt32("9fa5", 16); if (input != "") { //var code = Char.ConvertToUtf32(input, index); var gb = System.Text.Encoding.GetEncoding("Unicode"); var b = gb.GetBytes(input.Substring(index, 1)); var code = b[0] + b[1]*0x100; return code >= chfrom && code <= chend; } return false; }

Andrew Yin 2010-04-09 18:24 发表评论