#include<iostream>  
    #include<sstream>  
    #include<fstream>  
    using namespace std;  
      
    int main()  
    {  
        int a = 1;  
        wstring aa = "abcdef";  
      
        //第一種方法 c++  
        ofstream fout("D:\\outtxt.txt");  
      
        fout<<a<<endl;  
        fout<<endl;  
      
        fout<<flush;  
        fout.close();  
      
        //第二種方法 c  
        FILE *fp = fopen("d:\\out.txt", "wt");  
            fprintf(fp, "%d\t", a);  
      
        fprintf(fp, "\n");  
        fprintf(fp, "%s", aa.c_str());  
        fclose(fp);  
        system("pause");  
  
        return 0;  
    }