Question

如何用C语言实现文件复制程序？

各位大哥，我初学C语言，对编程不懂。希望大家多多指教。
我将感激不尽！！！
谢谢

Answer 1

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

void main(int argc,char *argv[])
{
FILE *in,*out;

if(argc!=3){
printf("\n Usage: Hcopy sourcefile targetfile.\n");
exit(1);
}
if((in=fopen(argv[1],"rb"))==NULL){
printf("\n Cannot open the source file.\n");
exit(2);
}
if((out=fopen(argv[2],"wb"))==NULL){
printf("\n Cannot open the targetfile.\n");
exit(3);
}

/* start copy */
while(!feof(in))
putc(getc(in),out);

fclose(in);
fclose(out);
}