避免嵌套条件是指尽量减少或避免使用多层嵌套的if语句,使代码更加清晰、可读性更高。以下是一些解决方法和示例代码:
def calculate_discount(price, customer_type):
if customer_type == 'vip':
return price * 0.8
if customer_type == 'regular':
return price * 0.9
return price
def get_grade(score):
return 'A' if score >= 90 else 'B' if score >= 80 else 'C' if score >= 70 else 'D'
def get_discount(customer_type):
discount_mapping = {
'vip': 0.8,
'regular': 0.9,
'new': 1.0
}
return discount_mapping.get(customer_type, 1.0)
class Customer:
def get_discount(self):
return 1.0
class VipCustomer(Customer):
def get_discount(self):
return 0.8
class RegularCustomer(Customer):
def get_discount(self):
return 0.9
def calculate_discount(price, customer):
return price * customer.get_discount()
通过使用上述方法,可以有效地避免嵌套条件,使代码更加简洁、可读性更高,并且易于扩展和维护。
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