fputc_fgetc.cpp

本程序介绍了如何用C语言快速读写磁盘文件。

#include <stdlib.h>
#include <stdio.h>
#include <string.h>

void fputc_fgetc_test()
{
	FILE *fp;
	char ch;

	fp = fopen( "E:\\C++_sample\\File_operating\\File_testing.txt", "w+" );//"a+"
	if(fp == NULL)
	{
		printf("cannot open the file\n");
		exit(0);
	}
	ch = getchar();
	while(ch != '#')
	{
		fputc(ch,fp);
		ch = getchar();
	}
	fclose(fp);

	fp = fopen( "E:\\C++_sample\\File_operating\\File_testing.txt", "r+" );//"w+"
	while(1)   
	{
		ch = fgetc(fp);
		if( feof(fp) )
			break;
		putchar(ch);
	}
	printf("\n");
	fclose(fp);


	return;
}