1 //UTF-8到GB2312的转换 2 char* U2G(const char* utf8) 3 { 4 int len = MultiByteToWideChar(CP_UTF8, 0, utf8, -1, NULL, 0); 5 wchar_t* wstr = new wchar_t[len+1]; 6 memset(wstr, 0, len+1); 7 MultiByteToWideChar(CP_UTF8, 0, utf8, -1, wstr, len); 8 len = WideCharToMultiByte(CP_ACP, 0, wstr, -1, NULL, 0, NULL, NULL); 9 char* str = new char[len+1]; 10 memset(str, 0, len+1); 11 WideCharToMultiByte(CP_ACP, 0, wstr, -1, str, len, NULL, NULL); 12 if(wstr) delete[] wstr; 13 return str; 14 } 15 16 //GB2312到UTF-8的转换 17 char* G2U(const char* gb2312) 18 { 19 int len = MultiByteToWideChar(CP_ACP, 0, gb2312, -1, NULL, 0); 20 wchar_t* wstr = new wchar_t[len+1]; 21 memset(wstr, 0, len+1); 22 MultiByteToWideChar(CP_ACP, 0, gb2312, -1, wstr, len); 23 len = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL); 24 char* str = new char[len+1]; 25 memset(str, 0, len+1); 26 WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, len, NULL, NULL); 27 if(wstr) delete[] wstr; 28 return str; 29 }
转自CSDN
URLencode，URLdecode， C++，windows，转自http://blog.csdn.net/gemo/article/details/8468311：
1 unsigned char ToHex(unsigned char x) 2 { 3 return x > 9 ? x + 55 : x + 48; 4 } 5 6 unsigned char FromHex(unsigned char x) 7 { 8 unsigned char y; 9 if (x >= 'A' && x <= 'Z') y = x - 'A' + 10; 10 else if (x >= 'a' && x <= 'z') y = x - 'a' + 10; 11 else if (x >= '0' && x <= '9') y = x - '0'; 12 else assert(0); 13 return y; 14 } 15 16 std::string UrlEncode(const std::string& str) 17 { 18 std::string strTemp = ""; 19 size_t length = str.length(); 20 for (size_t i = 0; i < length; i++) 21 { 22 if (isalnum((unsigned char)str[i]) || 23 (str[i] == '-') || 24 (str[i] == '_') || 25 (str[i] == '.') || 26 (str[i] == '~')) 27 strTemp += str[i]; 28 else if (str[i] == ' ') 29 strTemp += "+"; 30 else 31 { 32 strTemp += '%'; 33 strTemp += ToHex((unsigned char)str[i] >> 4); 34 strTemp += ToHex((unsigned char)str[i] % 16); 35 } 36 } 37 return strTemp; 38 } 39 40 std::string UrlDecode(const std::string& str) 41 { 42 std::string strTemp = ""; 43 size_t length = str.length(); 44 for (size_t i = 0; i < length; i++) 45 { 46 if (str[i] == '+') strTemp += ' '; 47 else if (str[i] == '%') 48 { 49 assert(i + 2 < length); 50 unsigned char high = FromHex((unsigned char)str[++i]); 51 unsigned char low = FromHex((unsigned char)str[++i]); 52 strTemp += high*16 + low; 53 } 54 else strTemp += str[i]; 55 } 56 return strTemp; 57 }