13-4.cpp

C程序设计（第3版）程序源代码,提供你最丰富的实际代码

#include<stdio.h>
     main()
      {FILE *fp1,*fp2;
        fp1=fopen("file1.c","r");
	fp2=fopen("file2.c","w");
        while(!feof(fp1)) putchar(getc(fp1));
        rewind(fp1);
	while(!feof(fp1)) putc(getc(fp1),fp2);
        fclose(fp1);fclose(fp2);
        }