近日开发中遇到半角与全角转换的问题，当时想了很多方法来实现可是总不近人意，最终用了最简单的数组方式来实现（人笨没办法），大家如果有更好的方法可以贴出来哈。

源码如下：

#define ZEN_MAX_LEN    2056

int FormatKaToZen(char* pDestination ,char* pSource)
{
    char *pTempDest   = pDestination;
    char *pTempSource = pSource;
    char* pTemp = NULL;
    int iTemp = 0;
    char szDestination[ZEN_MAX_LEN] = "";
    char szZen[3] = "";
 
    char szHan[256][3] = {{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},
       {""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},
       {"　"},{"！"},{"”"},{"＃"},{"＄"},{"％"},{"＆"},{"’"},{"（"},{"）"},{"＊"},{"＋"},{"、"},{"－"},{"．"},{"／"},
       {"０"},{"１"},{"２"},{"３"},{"４"},{"５"},{"６"},{"７"},{"８"},{"９"},{"："},{"；"},{"＜"},{"＝"},{"＞"},{"？"},
       {"＠"},{"Ａ"},{"Ｂ"},{"Ｃ"},{"Ｄ"},{"Ｅ"},{"Ｆ"},{"Ｇ"},{"Ｈ"},{"Ｉ"},{"Ｊ"},{"Ｋ"},{"Ｌ"},{"Ｍ"},{"Ｎ"},{"Ｏ"},
       {"Ｐ"},{"Ｑ"},{"Ｒ"},{"Ｓ"},{"Ｔ"},{"Ｕ"},{"Ｖ"},{"Ｗ"},{"Ｘ"},{"Ｙ"},{"Ｚ"},{"［"},{"￥"},{"］"},{"＾"},{"＿"},
       {"’"},{"ａ"},{"ｂ"},{"ｃ"},{"ｄ"},{"ｅ"},{"ｆ"},{"ｇ"},{"ｈ"},{"ｉ"},{"ｊ"},{"ｋ"},{"ｌ"},{"ｍ"},{"ｎ"},{"ｏ"},
       {"ｐ"},{"ｑ"},{"ｒ"},{"ｓ"},{"ｔ"},{"ｕ"},{"ｖ"},{"ｗ"},{"ｘ"},{"ｙ"},{"ｚ"},{"｛"},{"｜"},{"｝"},{"～"},{""},
       {""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},
       {""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},
       {""},{"。"},{"「"},{"」"},{"、"},{"・"},{"ヲ"},{"ァ"},{"ィ"},{"ゥ"},{"ェ"},{"ォ"},{"ャ"},{"ュ"},{"ョ"},{"ッ"},
       {"ー"},{"ア"},{"イ"},{"ウ"},{"エ"},{"オ"},{"カ"},{"キ"},{"ク"},{"ケ"},{"コ"},{"サ"},{"シ"},{"ス"},{"セ"},{"ソ"},
       {"タ"},{"チ"},{"ツ"},{"テ"},{"ト"},{"ナ"},{"ニ"},{"ヌ"},{"ネ"},{"ノ"},{"ハ"},{"ヒ"},{"フ"},{"ヘ"},{"ホ"},{"マ"},
       {"ミ"},{"ム"},{"メ"},{"モ"},{"ヤ"},{"ユ"},{"ヨ"},{"ラ"},{"リ"},{"ル"},{"レ"},{"ロ"},{"ワ"},{"ン"},{"″"},{"°"},
       {""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},
       {""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""},{""}};

 for(pTempSource;*pTempSource!='\0';*pTempSource++) 
 {
     iTemp = (int)*pTempSource;
     if(iTemp >= 32 && iTemp <= 126)
     {
         strncpy(szZen,szHan[iTemp],3);
         strcat(szDestination,szZen);
         continue;
     }
     else if(iTemp >= -95 && iTemp <= -33)
     {
         iTemp = iTemp + 256;
         strncpy(szZen,szHan[iTemp],3);
         strcat(szDestination,szZen);
         continue;  
     }
     else
     {
         strncat(szDestination,pTempSource,2);
         pTempSource++;
         continue;
     }

 }

 strcpy(pDestination, szDestination);

 return 0;
}