【Linux篇】fputs、fgets函数

一、fputs函数 

#include <stdio.h>
//fputs函数
int main(int argc,char *argv[])
{
	FILE *fp;
	char writeBuff[] = "hello world";

	fp = fopen("a.c","w+");
	if(fp == NULL)//判断文件是否打开
	{
		printf("open file failed\n");
		return -1;
	}
	fputs(writeBuff,fp);//把文件内容写入数组并打印出来

	fclose(fp);


	return 0;
}

二、fgets函数

#include <stdio.h>
//fgets函数
int main(int argc,char *argv[])
{
	FILE *fp;
	char writeBuff[] = "hello world";
	char readBuff[128] = {0};

	fp = fopen("a.c","w+");
	if(fp == NULL)
	{
		printf("open file failed\n");
		return -1;
	}

	fputs(writeBuff,fp);
	fseek(fp,0,SEEK_SET);//偏移量为0，光标在文件内容开头
	fgets(readBuff,128,fp);//读取数组数据
	printf("readBuff is %s\n",readBuff);//打印读取内容
	fclose(fp);


	return 0;
}