C++ 字符串相互转换 适合 lua project

#include <iostream>
#include <Windows.h>
#include <assert.h>
#define Main main

void wchar2char(char *Buf,const wchar_t* wchar)
{
    int len = WideCharToMultiByte(CP_ACP, , wchar, wcslen(wchar), NULL, , NULL, NULL);
    WideCharToMultiByte(CP_ACP, , wchar, wcslen(wchar), Buf, len, NULL, NULL);
}
//————————————————
//版权声明：本文为CSDN博主「bailang_zhizun」的原创文章，遵循CC 4.0 by - sa版权协议，转载请附上原文出处链接及本声明。
//原文链接：https ://blog.csdn.net/bailang_zhizun/article/details/80348282
wchar_t * char2wchar(const char* cchar)
{
    wchar_t *m_wchar;
    int len = MultiByteToWideChar(CP_ACP, , cchar, strlen(cchar), NULL, );
    m_wchar = new wchar_t[len + ];
    MultiByteToWideChar(CP_ACP, , cchar, strlen(cchar), m_wchar, len);
    m_wchar[len] = '\0';
    return m_wchar;
}
void UTF82WCS(char *buf,const char* szU8)
{
    //预转换，得到所需空间的大小;
    int wcsLen = ::MultiByteToWideChar(CP_UTF8, NULL, szU8, strlen(szU8), NULL, );

    //分配空间要给'\0'留个空间，MultiByteToWideChar不会给'\0'空间
    wchar_t wszString[] = {  };

    //转换
    ::MultiByteToWideChar(CP_UTF8, NULL, szU8, strlen(szU8), wszString, wcsLen);

    //最后加上'\0'
    wszString[wcsLen] = '\0';

    wchar2char(buf, wszString);
}
//————————————————
//版权声明：本文为CSDN博主「游学四方」的原创文章，遵循CC 4.0 by - sa版权协议，转载请附上原文出处链接及本声明。
//原文链接：https ://blog.csdn.net/blackbattery/article/details/78244178
char* UnicodeToUtf8(const wchar_t* unicode)
{
    int len;
    len = WideCharToMultiByte(CP_UTF8, , unicode, -, NULL, , NULL, NULL);
    char *szUtf8 = new char[];
    memset(szUtf8, , len + );
    WideCharToMultiByte(CP_UTF8, , unicode, -, szUtf8, len, NULL, NULL);
    return szUtf8;
}

int Main(int Argc,char **Argv)
{
    if (Argc == )
    {
        assert(false);
    }
    char buf[] = {  };
    char Buf[] = {  };

    for (int i = ; i < Argc - ; i++)
    {
        UTF82WCS(Buf, Argv[i + ]);
        strcat_s(buf, Buf);
        strcat_s(buf, "\r\n");
    }
    printf(buf);

    system("pause");
    return ;
}