linux 中文输出

#include <stdio.h>
   #include <stdlib.h>
   #include <string>
   #include <fstream>
   #include <sstream>
   #include <iostream>
   #include <iomanip>

   int main()
  {
          std::basic_ifstream<wchar_t, std::char_traits<wchar_t> > fs("./test.txt");
          if ( fs.fail() )
          {
              printf("Cannot open , errno !\n");
              return -;
          }
          //std::locale lc("zh_CN.UTF-8");
          std::locale lc("");
          std::locale::global(lc);
          fs.imbue(lc);
          wchar_t line[];

          while ( !fs.eof() )
          {
              line[] = ;
              fs.getline(line, sizeof(line));
              std::wcout<<"content: "<<line<<std::endl;
              printf("\n---> %ls  ,%d  eof:%d \n", line,sizeof(wchar_t), fs.eof());
          }

          printf("press any key to continue.\n");
          getchar();

          return ;
  }