VC6.0调用jsoncpp中文显示乱码，不要自己转化，请用下面的即可

jsoncpp代码版本：jsoncpp-src-0.5.0  

编译环境：VC6.0

修为位置：json_tool.h

网上发出的版本调用 wcstombs_s函数在VC6.0下不支持出现未定义，修正下用 wcstombs即可。代码如下。

VC6.0是不支持wcstombs_s函数的，会显示未定义。

需要修改如下 codePointToUTF8

/// Converts a unicode code-point to UTF-8.
static inline std::string  codePointToUTF8(unsigned int cp)
 {
  std::string  result;
 
  // based on description from http://en.wikipedia.org/wiki/UTF-8
 
  if (cp <= 0x7f) {
    result.resize(1);
    result[0] = static_cast(cp);
  } else if (cp <= 0x7FF) {
    result.resize(2);
    result[1] = static_cast(0x80 | (0x3f & cp));
    result[0] = static_cast(0xC0 | (0x1f & (cp >> 6)));
  } else if (cp <= 0xFFFF) {
      if ((cp >= 0x4E00 && cp <= 0x9FA5) || (cp >= 0xF900 && cp <= 0xFA2D) || cp == 0x3002 || cp == 0xFF1F || cp == 0xFF01 || cp == 0xFF0C || cp == 0x3001 || cp == 0xFF1B || cp == 0xFF1A || cp == 0x300C || cp == 0x300D || cp == 0x300E || cp == 0x300F || cp == 0x2018 || cp == 0x2019 || cp == 0x201C || cp == 0x201D || cp == 0xFF08 || cp == 0xFF09 || cp == 0x3014 || cp == 0x3015 || cp == 0x3010 || cp == 0x3011 || cp == 0x2014 || cp == 0x2026 || cp == 0x2013 || cp == 0xFF0E || cp == 0x300A || cp == 0x300B || cp == 0x3008 || cp == 0x3009)
    {
        wchar_t src[2] = { 0 };
        char dest[5] = { 0 };
        src[0] = static_cast(cp);
        std::string curLocale = setlocale(LC_ALL, NULL);
        setlocale(LC_ALL, "chs");
        wcstombs(dest, src, 2); //修正
        result = dest;
        setlocale(LC_ALL, curLocale.c_str());
    }
    else
    {
        result.resize(3);
        result[2] = static_cast(0x80 | (0x3f & cp));
        //result[1] = static_cast(0x80 | (0x3f & (cp >> 6)));
        //result[0] = static_cast(0xE0 | (0xf & (cp >> 12)));
        result[1] = 0x80 | static_cast((0x3f & (cp >> 6)));
        result[0] = 0xE0 | static_cast((0xf & (cp >> 12)));
    }
  } else if (cp <= 0x10FFFF) {
    result.resize(4);
    result[3] = static_cast(0x80 | (0x3f & cp));
    result[2] = static_cast(0x80 | (0x3f & (cp >> 6)));
    result[1] = static_cast(0x80 | (0x3f & (cp >> 12)));
    result[0] = static_cast(0xF0 | (0x7 & (cp >> 18)));
  }
 
  return result;
}