Linux 文件操作

#include <iostream>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
using namespace std;
int main(int argc, char *argv[])
{
    if(access(argv[1], F_OK) != 0)
    {
cout << "file not found......" << endl;
return 0;
    }
    int fin = open(argv[1], O_RDONLY, 0777);
    int fout = open(argv[2], O_WRONLY|O_CREAT, 0777);
    char buff[1024] = {'\0'};
    int len = 0;
    while((len = read(fin, buff, sizeof(buff))) > 0)
    {
write(fout, buff, len);
    }
    close(fin);
    close(fout);
    return 0;

}

#include <iostream>
#include <stdio.h>
using namespace std;
int main(int argc, char *argv[])
{
    FILE *fp1;
    fp1 = fopen(argv[1], "r");
    FILE *fp2;
    fp2 = fopen(argv[2], "w");
    char buff[1024] = {'\0'};
    int count = 0;
    while((count = fread(buff, 1, 1024, fp1)) != 0)
    {
fwrite(buff, 1, count, fp2);
    }
    fclose(fp1);
    fclose(fp2);
    return 0;
}