简单的聊天程序

简单的聊天程序#include<stdio.h> int jiemain() { printf(" 聊天室登入 "); printf(" *********** "); printf(" 1 注册 "); printf(" 2 登录 "); printf(" 3 退出 "); printf(" *********** "); } int panduanzhuce(char *mingzi) { while(*mingzi!='\0') { if((*mingzi>='a'&&*mingzi<='Z')||(*mingzi>='A'&&*mingzi<='Z')||(*mingzi='_')||(*mingzi>='0'&&*mingzi<='9')) { mingzi++; } else { return -1; } } return 0; }