C#实现将汉字与英文字符混和字符串中的汉字转换为拼音
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最近在做一个文章系统，需要生成静态页面（html页面），相应的就要生成标准的URL路径例如：http://www.vs2005-css.cn/Article/tuxingchuli/Photoshop/Photoshop-shilijiaocheng/2006-10-12/200610121516350.html，其实这个标准的URL路径对应的栏目分类是：图形处理－Photoshop－Photoshop实例教程(tuxingchuli/Photoshop/Photoshop-shilijiaocheng)，从这个路径中我们看到“图形处理”被转换为“tuxingchuli”，“Photoshop实例教程”被转换为“Photoshop-shilijiaocheng”，那么如何实现这样的转换呢？
实现的第一步就是如何将汉字转换为拼音，然后就是将汉字与英文字符混和字符串中的汉字转换为拼音。下面我们就用C#来实现。
第一步：用C#代码实现将汉字转换为拼音，实现的原理是先将汉字转化成为内码，然后通过内码和拼音的对照来查找。（这一部分参考了网友铁匠的文章，源代码稍做了修改）
本部分代码如下：/// <summary>
/// chs2py 的摘要说明
/// </summary>
public class chs2py
{/// <summary>
///将汉字转换成为拼音
/// </summary>
private static int[] pyvalue = new int[]{-20319,-20317,-20304,-20295,-20292,-20283,-20265,-20257,-20242,-20230,-20051,-20036,-20032,-20026,
-20002,-19990,-19986,-19982,-19976,-19805,-19784,-19775,-19774,-19763,-19756,-19751,-19746,-19741,-19739,-19728,
-19725,-19715,-19540,-19531,-19525,-19515,-19500,-19484,-19479,-19467,-19289,-19288,-19281,-19275,-19270,-19263,
-19261,-19249,-19243,-19242,-19238,-19235,-19227,-19224,-19218,-19212,-19038,-19023,-19018,-19006,-19003,-18996,
-18977,-18961,-18952,-18783,-18774,-18773,-18763,-18756,-18741,-18735,-18731,-18722,-18710,-18697,-18696,-18526,
-18518,-18501,-18490,-18478,-18463,-18448,-18447,-18446,-18239,-18237,-18231,-18220,-18211,-18201,-18184,-18183,
-18181,-18012,-17997,-17988,-17970,-17964,-17961,-17950,-17947,-17931,-17928,-17922,-17759,-17752,-17733,-17730,
-17721,-17703,-17701,-17697,-17692,-17683,-17676,-17496,-17487,-17482,-17468,-17454,-17433,-17427,-17417,-17202,
-17185,-16983,-16970,-16942,-16915,-16733,-16708,-16706,-16689,-16664,-16657,-16647,-16474,-16470,-16465,-16459,
-16452,-16448,-16433,-16429,-16427,-16423,-16419,-16412,-16407,-16403,-16401,-16393,-16220,-16216,-16212,-16205,
-16202,-16187,-16180,-16171,-16169,-16158,-16155,-15959,-15958,-15944,-15933,-15920,-15915,-15903,-15889,-15878,
-15707,-15701,-15681,-15667,-15661,-15659,-15652,-15640,-15631,-15625,-15454,-15448,-15436,-15435,-15419,-15416,
-15408,-15394,-15385,-15377,-15375,-15369,-15363,-15362,-15183,-15180,-15165,-15158,-15153,-15150,-15149,-15144,
-15143,-15141,-15140,-15139,-15128,-15121,-15119,-15117,-15110,-15109,-14941,-14937,-14933,-14930,-14929,-14928,
-14926,-14922,-14921,-14914,-14908,-14902,-14894,-14889,-14882,-14873,-14871,-14857,-14678,-14674,-14670,-14668,
-14663,-14654,-14645,-14630,-14594,-14429,-14407,-14399,-14384,-14379,-14368,-14355,-14353,-14345,-14170,-14159,
-14151,-14149,-14145,-14140,-14137,-14135,-14125,-14123,-14122,-14112,-14109,-14099,-14097,-14094,-14092,-14090,
-14087,-14083,-13917,-13914,-13910,-13907,-13906,-13905,-13896,-13894,-13878,-13870,-13859,-13847,-13831,-13658,
-13611,-13601,-13406,-13404,-13400,-13398,-13395,-13391,-13387,-13383,-13367,-13359,-13356,-13343,-13340,-13329,
-13326,-13318,-13147,-13138,-13120,-13107,-13096,-13095,-13091,-13076,-13068,-13063,-13060,-12888,-12875,-12871,
-12860,-12858,-12852,-12849,-12838,-12831,-12829,-12812,-12802,-12607,-12597,-12594,-12585,-12556,-12359,-12346,
-12320,-12300,-12120,-12099,-12089,-12074,-12067,-12058,-12039,-11867,-11861,-11847,-11831,-11798,-11781,-11604,
-11589,-11536,-11358,-11340,-11339,-11324,-11303,-11097,-11077,-11067,-11055,-11052,-11045,-11041,-11038,-11024,
-11020,-11019,-11018,-11014,-10838,-10832,-10815,-10800,-10790,-10780,-10764,-10587,-10544,-10533,-10519,-10331,
-10329,-10328,-10322,-10315,-10309,-10307,-10296,-10281,-10274,-10270,-10262,-10260,-10256,-10254};
private static string[] pystr = new string[]{"a","ai","an","ang","ao","ba","bai","ban","bang","bao","bei","ben","beng","bi","bian","biao",
"bie","bin","bing","bo","bu","ca","cai","can","cang","cao","ce","ceng","cha","chai","chan","chang","chao","che","chen",
"cheng","chi","chong","chou","chu","chuai","chuan","chuang","chui","chun","chuo","ci","cong","cou","cu","cuan","cui",
"cun","cuo","da","dai","dan","dang","dao","de","deng","di","dian","diao","die","ding","diu","dong","dou","du","duan",
"dui","dun","duo","e","en","er","fa","fan","fang","fei","fen","feng","fo","fou","fu","ga","gai","gan","gang","gao",
"ge","gei","gen","geng","gong","gou","gu","gua","guai","guan","guang","gui","gun","guo","ha","hai","han","hang",
"hao","he","hei","hen","heng","hong","hou","hu","hua","huai","huan","huang","hui","hun","huo","ji","jia","jian",
"jiang","jiao","jie","jin","jing","jiong","jiu","ju","juan","jue","jun","ka","kai","kan","kang","kao","ke","ken",
"keng","kong","kou","ku","kua","kuai","kuan","kuang","kui","kun","kuo","la","lai","lan","lang","lao","le","lei",
"leng","li","lia","lian","liang","liao","lie","lin","ling","liu","long","lou","lu","lv","luan","lue","lun","luo",
"ma","mai","man","mang","mao","me","mei","men","meng","mi","mian","miao","mie","min","ming","miu","mo","mou","mu",
"na","nai","nan","nang","nao","ne","nei","nen","neng","ni","nian","niang","niao","nie","nin","ning","niu","nong",
"nu","nv","nuan","nue","nuo","o","ou","pa","pai","pan","pang","pao","pei","pen","peng","pi","pian","piao","pie",
"pin","ping","po","pu","qi","qia","qian","qiang","qiao","qie","qin","qing","qiong","qiu","qu","quan","que","qun",
"ran","rang","rao","re","ren","reng","ri","rong","rou","ru","ruan","rui","run","ruo","sa","sai","san","sang",
"sao","se","sen","seng","sha","shai","shan","shang","shao","she","shen","sheng","shi","shou","shu","shua",
"shuai","shuan","shuang","shui","shun","shuo","si","song","sou","su","suan","sui","sun","suo","ta","tai",
"tan","tang","tao","te","teng","ti","tian","tiao","tie","ting","tong","tou","tu","tuan","tui","tun","tuo",
"wa","wai","wan","wang","wei","wen","weng","wo","wu","xi","xia","xian","xiang","xiao","xie","xin","xing",
"xiong","xiu","xu","xuan","xue","xun","ya","yan","yang","yao","ye","yi","yin","ying","yo","yong","you",
"yu","yuan","yue","yun","za","zai","zan","zang","zao","ze","zei","zen","zeng","zha","zhai","zhan","zhang",
"zhao","zhe","zhen","zheng","zhi","zhong","zhou","zhu","zhua","zhuai","zhuan","zhuang","zhui","zhun","zhuo",
"zi","zong","zou","zu","zuan","zui","zun","zuo"};
public chs2py()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
private static string chsTopy(string chrstr)
{
byte[] array = new byte[2];
string returnstr = "";
int chrasc = 0;
int i1 = 0;
int i2 = 0;
char[] nowchar = chrstr.ToCharArray();
for (int j = 0; j < nowchar.Length; j++)
{
array = System.Text.Encoding.Default.GetBytes(nowchar[j].ToString());
i1 = (short)(array[0]);
i2 = (short)(array[1]);
chrasc = i1 * 256 + i2 - 65536;
if (chrasc > 0 && chrasc < 160)
{
returnstr += nowchar[j];
}
else
{
for (int i = (pyvalue.Length - 1); i >= 0; i--)
{
if (pyvalue[i] <= chrasc)
{
returnstr += pystr[i];
break;
}
}
}
}
return returnstr;
}
}
在上面代码中我们编写一个类chs2py，通过调用该类的静态方法chsTopy实现将汉字转换为拼音，但是它只能将纯汉字字符串转换为拼音，如果字符中含有英文字符，调用该方法就会出错
第二步：用C#实现将汉字与英文字符混和的字符串中的汉字转换为拼音，例如“dotNet经典教程vs.net”转换后的结果是“dotNet-jingdianjiaocheng-vs.net”，我们用“-”做了分隔符，当然不要分隔符也可以，就像“dotNetjingdianjiaochengvs.net”，只要对下面的代码稍做修改就可以了。
我们在chs2py类中再添加一个静态方法，代码如下：
public static string ConvertTopy(string str)
{
string s = str.Trim();
s = s.Replace(" ", "-");
s = s.Replace("#", "");
string enStr = Regex.Replace(s, @"[/u4e00-/u9fa5]", " ", RegexOptions.IgnoreCase);
if (enStr.Trim()=="")
{
s = chsTopy(s);
}
else
{
enStr = enStr + " ";
List<string> strArr = new List<string>();
List<string> chStrArr = new List<string>();
string tempstr = string.Empty;
for (int i = 0; i < enStr.Length; i++)
{
if (enStr.Substring(i, 1) != " ")
{
tempstr = tempstr + enStr.Substring(i, 1);
}
else
{
strArr.Add(tempstr);
tempstr = string.Empty;
}
}
String chStr = s + " ";
for (int i = 0; i < strArr.Count; i++)
{
if (strArr[i].Length != 0)
{
chStr = chStr.Replace(strArr[i], " ");
}
}
tempstr = string.Empty;
for (int i = 0; i < chStr.Length; i++)
{
if (chStr.Substring(i, 1) != " ")
{
tempstr = tempstr + chStr.Substring(i, 1);
}
else
{
chStrArr.Add(tempstr);
tempstr = string.Empty;
}
}
for (int i = 0; i < chStrArr.Count; i++)
{
if (chStrArr[i].Length != 0)
{
s = s.Replace(chStrArr[i], "-" + chsTopy(chStrArr[i]) + "-");
}
}
s = s.Trim();
if (s.Substring(s.Length - 1, 1) == "-")
{
s = s.Substring(0, s.Length - 1);
}
}
return s;
}
调用该方法就可以将汉字与英文混和字符中的汉字转换为拼音。这个类的完整代码如下：
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Text.RegularExpressions;
using System.Collections.Generic;
/// <summary>
/// chs2py 的摘要说明
/// </summary>
public class chs2py
{/// <summary>
///将汉字转换成为拼音
///作者：铁匠（chinahuman）
///完成于：2004年3月12日早上
/// </summary>
private static int[] pyvalue = new int[]{-20319,-20317,-20304,-20295,-20292,-20283,-20265,-20257,-20242,-20230,-20051,-20036,-20032,-20026,
-20002,-19990,-19986,-19982,-19976,-19805,-19784,-19775,-19774,-19763,-19756,-19751,-19746,-19741,-19739,-19728,
-19725,-19715,-19540,-19531,-19525,-19515,-19500,-19484,-19479,-19467,-19289,-19288,-19281,-19275,-19270,-19263,
-19261,-19249,-19243,-19242,-19238,-19235,-19227,-19224,-19218,-19212,-19038,-19023,-19018,-19006,-19003,-18996,
-18977,-18961,-18952,-18783,-18774,-18773,-18763,-18756,-18741,-18735,-18731,-18722,-18710,-18697,-18696,-18526,
-18518,-18501,-18490,-18478,-18463,-18448,-18447,-18446,-18239,-18237,-18231,-18220,-18211,-18201,-18184,-18183,
-18181,-18012,-17997,-17988,-17970,-17964,-17961,-17950,-17947,-17931,-17928,-17922,-17759,-17752,-17733,-17730,
-17721,-17703,-17701,-17697,-17692,-17683,-17676,-17496,-17487,-17482,-17468,-17454,-17433,-17427,-17417,-17202,
-17185,-16983,-16970,-16942,-16915,-16733,-16708,-16706,-16689,-16664,-16657,-16647,-16474,-16470,-16465,-16459,
-16452,-16448,-16433,-16429,-16427,-16423,-16419,-16412,-16407,-16403,-16401,-16393,-16220,-16216,-16212,-16205,
-16202,-16187,-16180,-16171,-16169,-16158,-16155,-15959,-15958,-15944,-15933,-15920,-15915,-15903,-15889,-15878,
-15707,-15701,-15681,-15667,-15661,-15659,-15652,-15640,-15631,-15625,-15454,-15448,-15436,-15435,-15419,-15416,
-15408,-15394,-15385,-15377,-15375,-15369,-15363,-15362,-15183,-15180,-15165,-15158,-15153,-15150,-15149,-15144,
-15143,-15141,-15140,-15139,-15128,-15121,-15119,-15117,-15110,-15109,-14941,-14937,-14933,-14930,-14929,-14928,
-14926,-14922,-14921,-14914,-14908,-14902,-14894,-14889,-14882,-14873,-14871,-14857,-14678,-14674,-14670,-14668,
-14663,-14654,-14645,-14630,-14594,-14429,-14407,-14399,-14384,-14379,-14368,-14355,-14353,-14345,-14170,-14159,
-14151,-14149,-14145,-14140,-14137,-14135,-14125,-14123,-14122,-14112,-14109,-14099,-14097,-14094,-14092,-14090,
-14087,-14083,-13917,-13914,-13910,-13907,-13906,-13905,-13896,-13894,-13878,-13870,-13859,-13847,-13831,-13658,
-13611,-13601,-13406,-13404,-13400,-13398,-13395,-13391,-13387,-13383,-13367,-13359,-13356,-13343,-13340,-13329,
-13326,-13318,-13147,-13138,-13120,-13107,-13096,-13095,-13091,-13076,-13068,-13063,-13060,-12888,-12875,-12871,
-12860,-12858,-12852,-12849,-12838,-12831,-12829,-12812,-12802,-12607,-12597,-12594,-12585,-12556,-12359,-12346,
-12320,-12300,-12120,-12099,-12089,-12074,-12067,-12058,-12039,-11867,-11861,-11847,-11831,-11798,-11781,-11604,
-11589,-11536,-11358,-11340,-11339,-11324,-11303,-11097,-11077,-11067,-11055,-11052,-11045,-11041,-11038,-11024,
-11020,-11019,-11018,-11014,-10838,-10832,-10815,-10800,-10790,-10780,-10764,-10587,-10544,-10533,-10519,-10331,
-10329,-10328,-10322,-10315,-10309,-10307,-10296,-10281,-10274,-10270,-10262,-10260,-10256,-10254};
private static string[] pystr = new string[]{"a","ai","an","ang","ao","ba","bai","ban","bang","bao","bei","ben","beng","bi","bian","biao",
"bie","bin","bing","bo","bu","ca","cai","can","cang","cao","ce","ceng","cha","chai","chan","chang","chao","che","chen",
"cheng","chi","chong","chou","chu","chuai","chuan","chuang","chui","chun","chuo","ci","cong","cou","cu","cuan","cui",
"cun","cuo","da","dai","dan","dang","dao","de","deng","di","dian","diao","die","ding","diu","dong","dou","du","duan",
"dui","dun","duo","e","en","er","fa","fan","fang","fei","fen","feng","fo","fou","fu","ga","gai","gan","gang","gao",
"ge","gei","gen","geng","gong","gou","gu","gua","guai","guan","guang","gui","gun","guo","ha","hai","han","hang",
"hao","he","hei","hen","heng","hong","hou","hu","hua","huai","huan","huang","hui","hun","huo","ji","jia","jian",
"jiang","jiao","jie","jin","jing","jiong","jiu","ju","juan","jue","jun","ka","kai","kan","kang","kao","ke","ken",
"keng","kong","kou","ku","kua","kuai","kuan","kuang","kui","kun","kuo","la","lai","lan","lang","lao","le","lei",
"leng","li","lia","lian","liang","liao","lie","lin","ling","liu","long","lou","lu","lv","luan","lue","lun","luo",
"ma","mai","man","mang","mao","me","mei","men","meng","mi","mian","miao","mie","min","ming","miu","mo","mou","mu",
"na","nai","nan","nang","nao","ne","nei","nen","neng","ni","nian","niang","niao","nie","nin","ning","niu","nong",
"nu","nv","nuan","nue","nuo","o","ou","pa","pai","pan","pang","pao","pei","pen","peng","pi","pian","piao","pie",
"pin","ping","po","pu","qi","qia","qian","qiang","qiao","qie","qin","qing","qiong","qiu","qu","quan","que","qun",
"ran","rang","rao","re","ren","reng","ri","rong","rou","ru","ruan","rui","run","ruo","sa","sai","san","sang",
"sao","se","sen","seng","sha","shai","shan","shang","shao","she","shen","sheng","shi","shou","shu","shua",
"shuai","shuan","shuang","shui","shun","shuo","si","song","sou","su","suan","sui","sun","suo","ta","tai",
"tan","tang","tao","te","teng","ti","tian","tiao","tie","ting","tong","tou","tu","tuan","tui","tun","tuo",
"wa","wai","wan","wang","wei","wen","weng","wo","wu","xi","xia","xian","xiang","xiao","xie","xin","xing",
"xiong","xiu","xu","xuan","xue","xun","ya","yan","yang","yao","ye","yi","yin","ying","yo","yong","you",
"yu","yuan","yue","yun","za","zai","zan","zang","zao","ze","zei","zen","zeng","zha","zhai","zhan","zhang",
"zhao","zhe","zhen","zheng","zhi","zhong","zhou","zhu","zhua","zhuai","zhuan","zhuang","zhui","zhun","zhuo",
"zi","zong","zou","zu","zuan","zui","zun","zuo"};
public chs2py()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
private static string chsTopy(string chrstr)
{
byte[] array = new byte[2];
string returnstr = "";
int chrasc = 0;
int i1 = 0;
int i2 = 0;
char[] nowchar = chrstr.ToCharArray();
for (int j = 0; j < nowchar.Length; j++)
{
array = System.Text.Encoding.Default.GetBytes(nowchar[j].ToString());
i1 = (short)(array[0]);
i2 = (short)(array[1]);
chrasc = i1 * 256 + i2 - 65536;
if (chrasc > 0 && chrasc < 160)
{
returnstr += nowchar[j];
}
else
{
for (int i = (pyvalue.Length - 1); i >= 0; i--)
{
if (pyvalue[i] <= chrasc)
{
returnstr += pystr[i];
break;
}
}
}
}
return returnstr;
}
public static string ConvertTopy(string str)
{
string s = str.Trim();
s = s.Replace(" ", "-");
s = s.Replace("#", "");
string enStr = Regex.Replace(s, @"[/u4e00-/u9fa5]", " ", RegexOptions.IgnoreCase);
if (enStr.Trim()=="")
{
s = chsTopy(s);
}
else
{
enStr = enStr + " ";
List<string> strArr = new List<string>();
List<string> chStrArr = new List<string>();
string tempstr = string.Empty;
for (int i = 0; i < enStr.Length; i++)
{
if (enStr.Substring(i, 1) != " ")
{
tempstr = tempstr + enStr.Substring(i, 1);
}
else
{
strArr.Add(tempstr);
tempstr = string.Empty;
}
}
String chStr = s + " ";
for (int i = 0; i < strArr.Count; i++)
{
if (strArr[i].Length != 0)
{
chStr = chStr.Replace(strArr[i], " ");
}
}
tempstr = string.Empty;
for (int i = 0; i < chStr.Length; i++)
{
if (chStr.Substring(i, 1) != " ")
{
tempstr = tempstr + chStr.Substring(i, 1);
}
else
{
chStrArr.Add(tempstr);
tempstr = string.Empty;
}
}
for (int i = 0; i < chStrArr.Count; i++)
{
if (chStrArr[i].Length != 0)
{
s = s.Replace(chStrArr[i], "-" + chsTopy(chStrArr[i]) + "-");
}
}
s = s.Trim();
if (s.Substring(s.Length - 1, 1) == "-")
{
s = s.Substring(0, s.Length - 1);
}
}
return s;
}
}
本文参考了http://www.vs2005-css.cn/Article/Web-biancheng/C(CSharp)/C-jishuwendang/2006-10-14/200610141638260.html
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