C程序参考,简单易懂,是初学者不可少的参考资料

				#include
				#include
				void main()
				{  FILE *fp;char ch;
				   if((fp=fopen("d:\\a1.txt","w"))==NULL)
				   {   printf("Cann't create File d:\\a1.txt");
				       exit(0);
				   }
				   while((ch=getchar())!='\n')
				       fputc(ch,fp);
				   fclose(fp);
				   if((fp=fopen("d:\\a1.txt","r"))==NULL)
				   {   printf("Cann't open File d:\\a1.txt");
				       exit(0);
				   }
				   while(!feof(fp))
				putchar(fgetc(fp));
				fclose(fp);
				}