C语言完美演绎9-28

/* 范例9-28 */#include stdio.h#include stdlib.hvoid main(int argc,char *argv[]){if(argc!3){printf(Syntax Error!\n\tp9-28 oldname newname);exit(1);}if((rename(argv[1],argv[2]))-1)printf(File %s Cannot be renamed to %s\n,argv[1],argv[2]);elseprintf(Success rename %s to %s\n,argv[1],argv[2]);}程序执行结果D:\TCp9-28 old.txt new.txtSuccess rename old.txt to new.txt