原创 使用write（）写入文件

/*
 * main.c
 *
 *  Created on: 2024-6-10
 *      Author: root
 */

#include
#include
#include
#include
#include

#define LENGTH 2000


int main()
{
	char c[LENGTH];
	int f,i;
	puts("input will save file information: ");
	if((i=read(0,c,LENGTH))<1)
	{
		perror(" read failed !");
		return 1;
	}
	f=open("outfile",O_RDWR|O_CREAT,0664);
	if(f!=-1)
	{
		if(write(f,c,i)!=i)
			perror("write failed !");
		puts("save file succeed !");
		close(f);
	}
	else
		perror("open file");
	return 0;
}