fwrite实现文件复制
//@ author 成鹏致远
//@ net http://infodown.tap.cn
//@ qq 552158509
//@ blog lcw.cnblogs.com #include <stdio.h>
#include <stdlib.h>
#include <string.h> #define BUFSIZE 100 int main(int argc, char * argv[])
{
FILE *read_fp,*write_fp;
char buf[BUFSIZE]; if( != argc)
{
printf("Usage:%s <origin_filename> <target_filename> \n",argv[]);
exit();
}
if(NULL == (read_fp = fopen(argv[],"r")))
{
perror("malloc");
exit();
}
if(NULL == (write_fp = fopen(argv[],"w")))
{
perror("malloc");
exit();
} while(!feof(read_fp) && !ferror(read_fp))
{
bzero(buf,BUFSIZE);//在使用前一定要先清缓冲
fread(buf,BUFSIZE,,read_fp);//读取文件
fwrite(buf,strlen(buf),,write_fp);//写文件，注意要用strlen，因为最后一次可以装不满缓冲区
} fclose(read_fp);
fclose(write_fp); return ;
}
fgets实现文件复制
//@ author 成鹏致远
//@ net http://infodown.tap.cn
//@ qq 552158509
//@ blog lcw.cnblogs.com //copy file by line #include <stdio.h>
#include <stdlib.h> #define MAXSIZE 1024 int main(int argc, char * argv[])
{
FILE *read_fp,*write_fp;
char buf[MAXSIZE]; if( != argc)
{
printf("Usage:%s <origin_filename> <target_filename> \n",argv[]);
exit();
}
if(NULL == (read_fp = fopen(argv[],"r")))
{
perror("malloc");
exit();
}
if(NULL == (write_fp = fopen(argv[],"w")))
{
perror("malloc");
exit();
} while(NULL != fgets(buf,MAXSIZE,read_fp))//fgets()浼氭妸'\n'绠楀湪缂撳啿鍖轰腑
{
fputs(buf,write_fp);//paste file
} fclose(read_fp);
fclose(write_fp); return ;
}
fgetc实现文件
//@ author 成鹏致远
//@ net http://infodown.tap.cn
//@ qq 552158509
//@ blog lcw.cnblogs.com //copy file by char #include <stdio.h>
#include <stdlib.h> int main(int argc, char * argv[])
{
FILE *read_fp,*write_fp;
char tmp; if( != argc)
{
printf("Usage:%s <origin_filename> <target_filename> \n",argv[]);
exit();
}
if(NULL == (read_fp = fopen(argv[],"r")))
{
perror("malloc");
exit();
}
if(NULL == (write_fp = fopen(argv[],"w")))
{
perror("malloc");
exit();
} while(EOF !=(tmp= fgetc(read_fp)))//copy file
{
fputc(tmp,write_fp);//paste file
} fclose(read_fp);
fclose(write_fp); return ;
}