说明: #include #include #include #include #include int main (int argc,char *argv[]) { int fd1,fd2; fd1 = open(argv[1],O_RDONLY); fd2 = open(argv[2],O_WRONLY); char buf[1024]; size_t buff; buff = read(fd1,buf,sizeof(buf)); write(fd2,buf,buff); close(f
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