用于计算第二最低电费的Python类和对象

class ElectricityBill:
    def __init__(self, month, usage, rate):
        self.month = month
        self.usage = usage
        self.rate = rate
    
    def calculate_bill(self):
        return self.usage * self.rate
    
    def get_month(self):
        return self.month
    
    def get_usage(self):
        return self.usage
    
    def get_rate(self):
        return self.rate

# 创建电费账单对象
bill1 = ElectricityBill("January", 100, 0.1)
bill2 = ElectricityBill("February", 150, 0.12)
bill3 = ElectricityBill("March", 200, 0.15)

# 计算电费
bill1_amount = bill1.calculate_bill()
bill2_amount = bill2.calculate_bill()
bill3_amount = bill3.calculate_bill()

# 获取月份
bill1_month = bill1.get_month()
bill2_month = bill2.get_month()
bill3_month = bill3.get_month()

# 获取用电量
bill1_usage = bill1.get_usage()
bill2_usage = bill2.get_usage()
bill3_usage = bill3.get_usage()

# 获取费率
bill1_rate = bill1.get_rate()
bill2_rate = bill2.get_rate()
bill3_rate = bill3.get_rate()

print("Bill 1 - Month:", bill1_month)
print("Bill 1 - Usage:", bill1_usage)
print("Bill 1 - Rate:", bill1_rate)
print("Bill 1 - Amount:", bill1_amount)

print("Bill 2 - Month:", bill2_month)
print("Bill 2 - Usage:", bill2_usage)
print("Bill 2 - Rate:", bill2_rate)
print("Bill 2 - Amount:", bill2_amount)

print("Bill 3 - Month:", bill3_month)
print("Bill 3 - Usage:", bill3_usage)
print("Bill 3 - Rate:", bill3_rate)
print("Bill 3 - Amount:", bill3_amount)