1 #include<iostream>  2 #include<iomanip>  3 #include "stdlib.h"  4 #include<string>  5 using namespace std;  6   7 bool isID(string &);  8 typedef struct cnode  9 {     10     char name[20]; 11     string ID; 12     double consume; 13     double integer; 14     struct cnode *next; 15 }cnode; 16  17 void Initstack(cnode * &head)/*初始化链表*/ 18 {     19     head= new cnode();  //开辟节点空间 20     head->next=NULL; 21 } 22  23 void Getelem (cnode *head); 24 void Search(cnode *head,string &ID); 25 void Amend(cnode *head,string &ID); 26 void Delete(cnode *head,string &ID); 27 void Showall(cnode *head); 28 void count(cnode *head); 29 double display_discount(double integer); 30  31 int main() 32 { 33     cnode *head; 34     int choice; 35     string y; 36     Initstack(head); 37     do 38     { 39         cout<<endl; 40         cout<<"       客户消费 积分管理系统    "<<endl; 41         cout<<"  ******************************"<<endl; 42         cout<<"  *                            *"<<endl; 43         cout<<"  *          主菜单            *"<<endl; 44         cout<<"  *       1  添加客户          *"<<endl; 45         cout<<"  *       2  查找客户          *"<<endl; 46         cout<<"  *       3  修改客户          *"<<endl; 47         cout<<"  *       4  删除客户          *"<<endl; 48         cout<<"  *       5  显示客户          *"<<endl; 49         cout<<"  *       6  统计客户          *"<<endl; 50         cout<<"  *       7  退出              *"<<endl; 51         cout<<"  *                            *"<<endl; 52         cout<<"  ******************************"<<endl; 53         cout<<"请输入您的选择(1，2，3，4，5，6):"; 54         cin>>choice; 55         if(choice==1) 56             Getelem(head);                                //添加 57         else if(choice==2) 58         { 59             cout<<"请输入您查找客户的身份证号:"; 60             cin>>y; 61             isID(y); 62             Search(head,y);                           //查找 63         } 64         else if(choice==3) 65         { 66             cout<<"请输入您想修改客户的身份证号:"; 67             cin>>y; 68             isID(y); 69             Amend(head,y);  70         }                             //修改 71         else if(choice==4) 72         { 73             cout<<"请输入你想要删除的客户的身份证号："; 74             cin>>y; 75             isID(y); 76             Delete(head,y);     77         }                          //删除    78         else if(choice==5) 79             Showall(head);                            //显示    80         else if(choice==6) 81             count(head);             //统计    82         else if(choice==7) 83             exit(1); 84     } 85     while(choice<=7); 86     system("pause"); 87     return 0; 88 } 89 void Getelem (cnode *head)  90 {       91     //添加客户函数以头节点为参数 92     cnode *p; 93     double y; 94     p=new cnode; 95     p->next=new cnode;/*申请空的节点空间*/ 96     p->ID=" "; 97     cout<<"请输入姓名："; 98     cin>>p->name; 99     cout<<"请输入身份证号(18位)：";100     cin>>p->ID;101     isID(p->ID);102     cout<<"请输入消费金额：";103     cin>>p->consume;104     p->integer=p->consume/100;105     cout<<"积分："<<p->integer<<endl;106     y=display_discount(p->integer);                      //调用函数计算折扣107     cout<<"折扣:"/*<<setprecision(1)*/<<y<<"折"<<endl;108     p->next=head->next;109     head->next=p;110 }111 void Search(cnode *head,string &ID)112 {    113     cnode *p=new cnode;114     double y;115     p=head;116     if(p->next==NULL)117         cout<<"没有客户!"<<endl;118     else119     {120         while(p->next!=NULL)121         {122             p=p->next;123             if(ID==p->ID)          //判断身份证号是否相同124             {                    125                 cout<<"姓名："<<p->name<<endl;126                 cout<<"身份证号："<<p->ID<<endl;127                 cout<<"消费："<</*setprecision(2)<<*/p->consume<<endl;128                 cout<<"积分:"<<p->integer<<endl;129                 y=display_discount(p->integer);130                 cout<<"折扣"<</*setprecision(1)<<*/y<<"折"<<endl;131                 return;132             }133         }134         cout<<"不存在该客户！"<<endl;135     }136 }137 138 /*139 修改客户函数140 通过ID获取信息141 可以修改身份证号、姓名、消费金额142 修改消费金额有覆盖原有金额及续加两种方式143 */144 void Amend(cnode *head,string &ID){                              145     cnode *p;146     double y,z;147     int choose,x;148     p=head;149     if(p->next==NULL)150         cout<<"没有客户!"<<endl;151     else152     {153         while(p->next!=NULL)154         {155             p=p->next;156             if(ID==p->ID)     //判断身份证号是否相同157             {                    158                 cout<<"姓名："<<p->name<<endl;159                 cout<<"身份证号："<<p->ID<<endl;160                 cout<<"消费："/*<<setprecision(2)*/<<p->consume<<endl;161                 cout<<"积分:"<</*setprecision(1)<<*/p->integer<<endl;162                 y=display_discount(p->integer);163                 cout<<"折扣:"<</*setprecision(1)<<*/y<<"折"<<endl;164                 cout<<"请选择你要修改的1、姓名。2、身份证号。3、消费金额。";165                 cin>>choose;166                 if(choose==1)167                 {168                     cout<<"请输入修改后姓名;";169                     cin>>p->name;170                 }171                 if(choose==2)172                 {173                     cout<<"请输入修改后的身份证号:";174                     cin>>p->ID;175                     isID(p->ID);176                 }177                 if(choose==3)178                 {179                     cout<<"1.覆盖以前消费、2.续加上现在费用!请选择:";180                     cin>>x;181                     if(x==1)182                     {183                         cout<<"请输入修改后的消费:";184                         cin>>p->consume;185                     }186                     else{187                         printf("请输入续加金额:");188                         cin>>z;189                         p->consume+=z;190                     }191                 }192                 cout<<"姓名："<<p->name<<endl;193                 cout<<"身份证号："<<p->ID<<endl;194                 cout<<"消费："<</*setprecision(2)<<*/p->consume<<endl;195                 p->integer=p->consume/100.0;196                 cout<<"积分:"<<p->integer<<endl;197                 y=display_discount(p->integer);198                 cout<<"折扣:"/*<<setprecision(1)*/<<y<<"折"<<endl;199                 return;200             }201         }202         cout<<"不存在该客户！"<<endl;203     }204 }205 void Delete(cnode *head,string &ID)206 {207     //删除客户函数208     cnode *p;209     int x;210     double y;211     p=head;212     if(p->next==NULL)213         cout<<"没有客户!"<<endl;214     else215     {216         while(p->next!=NULL)217         {218             head=p;219             p=p->next;220             if(ID==p->ID) 221             {                 //判断身份证号是否相同                                   222                 cout<<"姓名："<<p->name<<endl;223                 cout<<"身份证号："<<p->ID<<endl;224                 cout<<"消费："/*<<setprecision(2)*/<<p->consume<<endl;225                 cout<<"积分:"<<p->integer<<endl;226                 y=display_discount(p->integer);227                 cout<<"折扣:"<</*setprecision(1)<<*/y<<"折"<<endl;228                 cout<<"你确认删除？1、确定。2、取消。请选择:";229                 cin>>x;230                 if(x==1)231                 {232                     head->next=p->next;233                     cout<<("删除成功!");234                 }235                 else236                     cout<<"删除失败!";237                 return ;238             }239         }    240         cout<<"不存在该客户！"<<endl;241     }242 }243 void Showall(cnode *head) //显示所有客户函数244 {245     cnode *p;246     double y;247     p=head;248     if(p->next==NULL)249         cout<<"没有客户!"<<endl;250     else251         while(p->next!=NULL)252         {253             p=p->next;254             cout<<"姓名："<<p->name<<endl;255             cout<<"身份证号："<<p->ID<<endl;256             cout<<"消费："<</*setprecision(2)<<*/p->consume<<endl;257             cout<<"积分："<<p->integer<<endl;258             y=display_discount(p->integer);259             cout<<"折扣："<</*setprecision(1)<<*/y<<"折"<<endl;260         }261 }262 263 void count(cnode *head) 264 {265     cnode *p;266     int i=0;267     p=head;268     if(p->next==NULL)269         cout<<"没有客户!"<<endl;270     else271         while(p->next!=NULL)272         {273             p=p->next;274             i++;275         }276         cout<<"现有客户数量为"<<i<<"位!"<<endl;277 }278 double display_discount(double points) 279 {280     //计算客户折扣函数，接受一个double型的数作为参数，输出对应的折扣281     double discount;282     if(points == 0)283         discount = 0;284     if(points > 0&&points <= 50)285         discount = 9.8;286     if(points > 50&&points <= 100)287         discount = 9.5;288     if(points > 100&&points <= 150)289         discount = 9.2;290     if(points > 150&&points <= 200)291         discount = 9;292     if(points > 200&&points <= 300)293         discount = 8;294     else if(points > 300)295         discount = 7;296     return discount;297 }298 299 int cal(string a)300 {301     return (a[0] - ‘0‘) * 7 + (a[1] - ‘0‘) * 9 + (a[2] - ‘0‘) * 10 +  (a[3] - ‘0‘) * 5 + (a[4] - ‘0‘) * 8 + 302         (a[5] - ‘0‘) *4  + (a[6] - ‘0‘) * 2 + (a[7] - ‘0‘) * 1 + (a[8] - ‘0‘) * 6 +(a[9] - ‘0‘) * 3 + 303         (a[10] - ‘0‘) * 7 + (a[11] - ‘0‘) * 9 + (a[12] - ‘0‘) * 10 + (a[13] - ‘0‘) * 5 + (a[14] - ‘0‘) * 8 + 304         (a[15] - ‘0‘) * 4 +(a[16] - ‘0‘) * 2;305 }306 307 char s(string a)308 {309     int k = cal(a) % 11;310     if (k == 0)311         return ‘1‘;312     else if (k == 1)313         return ‘0‘;314     else if (k == 2)315         return ‘X‘;316     else317         return ‘0‘+12-k;318 }319 320 bool isNumber(string str);321 bool isID(string &number)322 {323     do324     {325             if(18==number.length()&&isNumber(number))326             if (number[17] == s(number))327                 return true;328             else329                 return false;330         else331             cout<<"输入格式不正确,请重新输入："<<endl;332     }while (cin >> number);333 334 }335 336 bool isNumber(string str)337 {338     for(int i=0;i<str.length()-1;i++)339         if(!isdigit(str[i]))340             return false;341     if((isdigit(str[str.length()-1]))||str[str.length()-1]==‘X‘)342         return true;343     else344         return false;345 }