本文实例为大家分享了C语言实现点餐系统的具体代码,供大家参考,具体内容如下
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#include<iostream>
#include<cstring>
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<cstring>
#include<conio.h>
using namespace std;
typedef struct member
{
char username[20]; //用户名
char password[20]; //密码
}Member;
typedef struct product
{
char name[20]; //菜品名
int price;
int num; //销售数量
}Product;
/*菜单函数区*/
void menu1(); /*主菜单*/
void menu2(); /*管理员界面*/
void all_info(); //点单信息
void member_log_up(); //注册
void member_log_in_interface(); //登录界面外观
int member_log_in(); //登录
void check();
/*管理员菜单函数*/
void sell_info(); //菜品所有信息
void password_manage(); //用户名密码信息
int compare_password( char password[]); //对比密码函数
int main()
{
int flag1=1,flag_member=0,flag_admin=0;
int choice1,choice2;
while (flag1){
menu1();
printf ( "\n" );
printf ( "请您选择(1-5):" );
scanf ( "%d" ,&choice1);
if (choice1==1) /*会员登录*/
{
member_log_in_interface();
flag_member=member_log_in();
while (flag_member)
{
all_info();
check();
}
}
else if (choice1==2) /*会员注册*/
{
printf ( "\n\n\n\t\t\t正在进入用户注册界面...\n" );
member_log_up();
}
else if (choice1==3) /*管理员登录*/
{
printf ( "请输入密码:" );
char password[20]={0};
scanf ( "%s" ,password);
if (compare_password(password))
{
printf ( "\n\n\t\t\t\t --输入密码正确!--\n\n\t\t\t\t==正在进入管理员界面==\n" );
flag_admin=1;
}
else
{
printf ( "\n\n\t\t\t\t --输入密码错误!--\n" );
}
while (flag_admin)
{
menu2();
printf ( "请您选择(1-3):" );
scanf ( "%d" ,&choice2);
switch (choice2)
{
case 1:password_manage(); break ;
case 2:sell_info(); break ;
case 3:flag_admin=0; break ;
}
}
}
else if (choice1==4) /*退出系统*/
{
flag1=0;
}
}
printf ( "你已经安全退出系统!(按任意键关闭界面)\n\n\t欢迎您的再次使用!\n\n" );
return 0;
}
void menu1()
{
system ( "color E9" );
printf ( "\n\n" );
printf ( "\t\t\t *=======================================*\n" );
printf ( "\t\t\t| * - * - * Zhou Cheng - System - * - * |\n" );
printf ( "\t\t\t| * * |\n" );
printf ( "\t\t\t| | [1] 会员登录 | |\n" );
printf ( "\t\t\t| * * |\n" );
printf ( "\t\t\t| | [2] 会员注册 | |\n" );
printf ( "\t\t\t| * * |\n" );
printf ( "\t\t\t| | [3] 管理员登录 | |\n" );
printf ( "\t\t\t| * * |\n" );
printf ( "\t\t\t| | [4] 退出系统 | |\n" );
printf ( "\t\t\t| * * |\n" );
printf ( "\t\t\t| * - * - * - * - * - * - * - * - * - * |\n" );
printf ( "\t\t\t *=======================================*\n" );
}
void menu2()
{
printf ( "\n\n" );
printf ( "\t\t\t *======================================*\n" );
printf ( "\t\t\t| | * - * - * 管-理-员-界-面 * - * - * | |\n" );
printf ( "\t\t\t| * * |\n" );
printf ( "\t\t\t| | [1] 会员密码管理 | |\n" );
printf ( "\t\t\t| * [2] 各产品销售信息 * |\n" );
printf ( "\t\t\t| * [3] 退出管理员界面 * |\n" );
printf ( "\t\t\t| | | |\n" );
printf ( "\t\t\t| * - * - * - * - * -- * - * - * - * - * |\n" );
printf ( "\t\t\t *======================================*\n" );
}
int compare_password( char password[]) /*管理员密码比对函数 */
{
int i,flag=1;
for (i=0;i<6;i++)
{
if (password[i]!= '1' +i)flag=0;
}
return flag;
}
void member_log_up() //会员注册函数
{
Member member;
while (1)
{
printf ( "请输入您想创建的username(用户名):" );
scanf ( "%s" ,member.username);
printf ( "请输入您的密码(20个字符以内):" );
scanf ( "%s" ,member.password);
printf ( "是否确认创建(y/n):" );
char ch=getch();
if (ch== 'n' ) continue ;
else if (ch== 'y' )
{
FILE *fp= fopen ( "memberInfo.txt" , "a+" );
fprintf (fp, "%s %s " ,member.username,member.password);
fclose (fp);
printf ( "\n您已注册成功!\n" );
printf ( "--------正在返回大厅--------" );
return ;
}
}
}
int member_log_in()
{
Member member[100];
FILE *fp= fopen ( "memberInfo.txt" , "a+" );
int i=0;
while (! feof (fp))
{
fscanf (fp, "%s %s" ,member[i].username,member[i].password);
i++;
}
char username[20],password[20];
scanf ( "%s" ,username);
printf ( "\t\t\t 密码 (password):" );
scanf ( "%s" ,password);
int flag=0;
for ( int j=0;j<i;j++)
{
if ( strcmp (username,member[j].username)==0&& strcmp (password,member[j].password)==0)
{
flag=1;
break ;
}
}
return flag;
}
void member_log_in_interface() /*登入界面*/
{
printf ( "\n\n\n\t\t\t***================================*** \n" );
printf ( "\t\t\t \n" );
printf ( "\t\t\t 用户名 (username):" );
}
void all_info()
{
Product product[100];
FILE *fp= fopen ( "productInfo.txt" , "a+" );
int i=0;
while (! feof (fp))
{
fscanf (fp, "%s %d %d" ,product[i].name,&product[i].price,&product[i].num);
i++;
}
printf ( "编号--菜品名---------单价---\n" );
for ( int j=0;j<i;j++)
{
printf ( "%-6d%-15s%-7d\n" ,j+1,product[j].name,product[j].price);
}
printf ( "请输入想要购买的菜品编号以及数量(用空格分割):" );
int num,count;
scanf ( "%d %d" ,&num,&count);
printf ( "此函数还没写完...\n" );
printf ( "按任意键前往结算界面:" );
char c;
scanf ( " %c" ,&c);
}
void sell_info()
{
Product product[100];
FILE *fp= fopen ( "productInfo.txt" , "a+" );
int i=0;
while (! feof (fp))
{
fscanf (fp, "%s %d %d" ,product[i].name,&product[i].price,&product[i].num);
i++;
}
printf ( "--菜品名---------单价---销售量---销售额--\n" );
for ( int j=0;j<i;j++)
{
printf ( " %-15s%-7d%-9d%-8d\n" ,product[j].name,product[j].price,product[j].num,product[j].price*product[j].num);
}
printf ( "按任意键返回菜单:" );
char c;
scanf ( " %c" ,&c);
}
void password_manage()
{
Member member[100];
FILE *fp= fopen ( "memberInfo.txt" , "a+" );
int i=0;
while (! feof (fp))
{
fscanf (fp, "%s %s" ,member[i].username,member[i].password);
i++;
}
printf ( "----用户名------------密码----------" );
for ( int j=0;j<i;j++)
{
printf ( "\n %-17s %-15s" ,member[j].username,member[j].password);
}
printf ( "按任意键返回菜单:" );
char c;
scanf ( " %c" ,&c);
}
void check()
{
printf ( "此函数还没写...\n" );
printf ( "按任意键返回菜单:" );
char c;
scanf ( " %c" ,&c);
}
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以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/zhoucheng_123/article/details/106767492