添加 wulayaha

wulayaha

@@ -0,0 +1,80 @@
+class Account:
+    def __init__(self, account_number, account_holder, balance=0):
+        self.account_number = account_number
+        self.account_holder = account_holder
+        self.balance = balance
+
+    def deposit(self, amount):
+        if amount > 0:
+            self.balance += amount
+            print(f"成功存入 {amount} 元，当前余额为 {self.balance} 元。")
+        else:
+            print("存款金额必须大于 0。")
+
+    def withdraw(self, amount):
+        if 0 < amount <= self.balance:
+            self.balance -= amount
+            print(f"成功取出 {amount} 元，当前余额为 {self.balance} 元。")
+        else:
+            print("余额不足或取款金额无效。")
+
+    def get_balance(self):
+        return self.balance
+
+    def display_info(self):
+        print(f"账户号码: {self.account_number}")
+        print(f"账户持有人: {self.account_holder}")
+        print(f"当前余额: {self.balance} 元")
+
+
+class SavingAccount(Account):
+    def __init__(self, account_number, account_holder, balance=0, interest_rate=0.01):
+        super().__init__(account_number, account_holder, balance)
+        self.interest_rate = interest_rate
+
+    def calculate_interest(self):
+        interest = self.balance * self.interest_rate
+        self.balance += interest
+        print(f"利息计算完成，利息为 {interest} 元，当前余额为 {self.balance} 元。")
+
+
+class Bank:
+    def __init__(self):
+        self.accounts = []
+
+    def add_account(self, account):
+        self.accounts.append(account)
+        print(f"账户 {account.account_number} 已成功添加到银行系统。")
+
+    def find_account(self, account_number):
+        for account in self.accounts:
+            if account.account_number == account_number:
+                return account
+        return None
+
+    def display_all_accounts(self):
+        for account in self.accounts:
+            account.display_info()
+            print("-" * 20)
+
+
+# 测试代码
+if __name__ == "__main__":
+    bank = Bank()
+
+    account1 = Account("123456", "John Doe", 1000)
+    saving_account1 = SavingAccount("789012", "Jane Smith", 2000)
+
+    bank.add_account(account1)
+    bank.add_account(saving_account1)
+
+    account = bank.find_account("123456")
+    if account:
+        account.deposit(500)
+        account.withdraw(200)
+
+    saving_account = bank.find_account("789012")
+    if saving_account:
+        saving_account.calculate_interest()
+
+    bank.display_all_accounts()