实现一个简单的银行储蓄系统，承担活期用户的存款和取款业务 （只是初步的写出）

1. 要求如下：

1) 实现描述银行的类Bank，记录系统中现有哪些储户(可用数组或vector实现)，定义了生成储户的函数append，按照账户删除储户的函数的delete，按账号查询储户的函数query，并显示结果。

2) 定义储户基类Account，具有属性账号，存款人姓名和余额，操作saving、withdraw和showme。虚函数saving 存储业务，虚函数withdraw处理取款业务，虚showme函数显示储户所有信息。

3) 定义储户派生类普通储户NormalAccount，实现操作saving、withdraw和showme，函数withdraw处理取款业务时余额不足不予取并提示信息，函数showme显示普通储户的所有信息。

4) 定义储户派生类高级储户VIPAccount，包含普通账户的所有信息，同时包含透支上限，透支总额，函数withdraw处理取款业务时超过透支上限不予取并提示信息，函数showme显示高级储户的所有信息。

5) 编写main函数，测试上述所要求的各种功能，即可以根据菜单命令增加，删除，和查询储户，以及储户存款和取款操作：

ž 增加账户时可选择增加普通账户和高级账户，普通账户帐号格式为“N001”，高级账户帐号格式为“V001”；

ž 根据输入的帐号删除和查询账户；

ž 储户取款和存款时要求输入帐号，根据帐号来操作账户。

 

  1 #include <iostream>

  2 #include <string>

  3 

  4 using namespace std;

  5 

  6 class Account

  7 {

  8     public:

  9         Account(string a,string b,double bal);

 10         virtual void saving(double a);

 11         virtual void withdrow(double a);

 12         virtual void showme();

 13         string getId();

 14 

 15 

 16     private:

 17         string Account_name;

 18         string name;

 19         double balance ;

 20 

 21 

 22 };

 23 

 24 class NormalAccount:public Account

 25 {

 26     public:

 27         NormalAccount(string a,string b,double bal):Account(a,b,bal)

 28         {

 29 

 30         }

 31     private:

 32         string Account_name;

 33         string name;

 34         double balance ;

 35 };

 36 

 37 class VIPAccount:public Account

 38 {

 39     public:

 40         VIPAccount(string a,string b,double bal,double d,double e):Account(a,b,bal),tzsx(d),tzze(e)

 41         {

 42 

 43         }

 44         void withdrow(double a);

 45         void showme();

 46 

 47 

 48     private:

 49         string Account_name;

 50         string name;

 51         double balance ;

 52         double tzsx;

 53         double tzze;

 54 

 55 

 56 };

 57 

 58 Account::Account(string a,string b,double bal)

 59 {

 60     Account_name = a;

 61     name = b;

 62     balance = bal;

 63 }

 64 

 65 void Account::saving(double a)

 66 {

 67     balance = balance + a;

 68 }

 69 

 70 void Account::withdrow(double a)

 71 {

 72     if(a > balance)

 73         cout<<"余额不足"<<endl;

 74     else

 75     {

 76         balance = balance - a;

 77         cout << "已取出" << a << "元" <<endl;

 78     }

 79 }

 80 

 81 void Account::showme()

 82 {

 83     cout << "用户账号为" << Account_name << endl;

 84     cout << "开户人姓名" << name <<endl;

 85     cout << "账户余额为" << balance <<endl;

 86 }

 87 

 88 string Account::getId()

 89 {

 90     return Account_name;

 91 }

 92 

 93 void VIPAccount::withdrow(double a)

 94 {

 95     if(a >balance + tzsx -tzze)

 96         cout<<"不可透支"<<endl;

 97     else

 98         balance = balance - a;

 99 

100 }

101 

102 void VIPAccount::showme()

103 {

104     cout << "用户账号为" << Account_name << endl;

105     cout << "开户人姓名" << name <<endl;

106     cout << "账户余额为" << balance <<endl;

107     cout << "透支上限为" << tzsx <<endl;

108     cout << "透支总额为" << tzze <<endl;

109 

110 }

111 

112 class Bank

113 {

114     public:

115         Bank();

116         void append1();

117         void append2();

118         void del();

119         void query();

120         Account *account[100];

121     private:

122 

123         int accNum;

124         double Balance;

125 

126 };

127 

128 Bank::Bank()

129 {

130     for(int i = 0;i < 100 ; i++ )

131     {

132         account[i] = NULL;

133     }

134 

135     accNum = 0;

136 }

137 

138 void Bank::append1()

139 {

140     string str1,str2;

141 

142     cout << "请输入普通用户账号" << endl;

143     cin>>str1;

144     cout << "请输入开户人姓名" << endl;

145     cin>>str2;

146     Account *acc = new NormalAccount(str1,str2,0) ;

147     cout<<"增加普通账户成功"<<endl;

148 

149     account[accNum] = acc;

150     accNum++;

151 }

152 

153 void Bank::append2()

154 {

155     string str1,str2;

156 

157     cout << "请输入高级用户账号" << endl;

158     cin>>str1;

159     cout << "请输入开户人姓名" << endl;

160     cin>>str2;

161     Account *acc = new VIPAccount(str1,str2,0,5000,0) ;

162     cout<<"增加高级账户成功"<<endl;

163 

164     account[accNum] = acc;

165     accNum++;

166 }

167 

168 void Bank::del()

169 {

170     string n;

171     cout << "请输入要注销的用户账号" << endl;

172     cin>>n;

173 

174     for(int i=0;i<100;i++)

175     {

176         if(account[i]->getId() != n)

177             cout<<"没有这个账号"<<endl;

178         if(account[i]->getId() == n)

179         {

180             delete account[i];

181             accNum--;

182 

183         }

184 

185     }

186 }

187 

188 void Bank::query()

189 {

190     string n;

191     cout << "请输入您要查询的用户账号" << endl;

192     cin>>n;

193 

194     for(int i=0;i<100;i++)

195     {

196         if(account[i]->getId() != n)

197             cout<<"没有这个账号"<<endl;

198         if(account[i]->getId() == n)

199             account[i]->showme();

200     }

201 

202 }

203 

204 int main()

205 {

206     Bank bank;

207 

208     while(1)

209     {

210         cout << "1.增加账户" << endl;

211         cout << "2.删除账户" <<endl;

212         cout << "3.查询账户" <<endl;

213         cout << "4.取款和存款" <<endl;

214         cout << "5.退出系统" <<endl;

215 

216         cout << "请选择" <<endl;

217 

218         int n;

219 

220         cin>>n;

221 

222         if(n == 1)

223         {

224             int n;

225             cout << "1.增加普通账户" << endl;

226             cout << "2.增加高级账户" << endl;

227             cout << "请选择" << endl;

228             cin>>n;

229 

230             if(n == 1)

231                 bank.append1();

232 

233             if(n == 2)

234                 bank.append2();

235 

236         }

237 

238         if (n == 2)

239         {

240             bank.del();

241         }

242 

243         if (n == 3)

244         {

245             bank.query();

246         }

247 

248         if (n == 4)

249         {

250 

251             string n;

252             cout<<"请输入您要存取款的账号"<<endl;

253             cin>>n;

254             for(int i=0;i<100;i++)

255             {

256                 if(bank.account[i]->getId() != n)

257                     cout<<"账号输入错误"<<endl;

258                 if(bank.account[i]->getId() == n)

259                 {

260                     int choice;

261 

262                     cout<<"1.取款"<<endl;

263                     cout<<"2.存款"<<endl;

264                     cout<<"请选择"<<endl;

265 

266                     cin>>choice;

267                     if(choice == 1)

268                     {

269                         double jine;

270                         cout<<"请输入取款金额"<<endl;

271                         cin >> jine;

272                         bank.account[i]->withdrow(jine);

273                         bank.account[i]->showme();

274 

275                     }

276                     if(choice == 2)

277                     {

278                         double qkuan;

279                         cout<<"请输入存款金额"<<endl;

280                         cin>>qkuan;

281                         bank.account[i]->saving(qkuan);

282                         bank.account[i]->showme();

283                     }

284                 }

285 

286             }

287 

288 

289         }

290 

291         if (n == 5)

292             return 0;

293     }

294 

295     //return 0;

296 }