在python中收缩非常大的If语句

if condition1:
    # 代码块1
elif condition2:
    # 代码块2
elif condition3:
    # 代码块3
...
else:
    # 默认代码块

options = {
    'value1': function1,
    'value2': function2,
    'value3': function3,
    ...
}
options.get(variable, default_function)()  # 执行对应的函数

class Strategy:
    def execute(self):
        pass

class Strategy1(Strategy):
    def execute(self):
        # 代码块1

class Strategy2(Strategy):
    def execute(self):
        # 代码块2

class Strategy3(Strategy):
    def execute(self):
        # 代码块3

# 根据条件选择对应的策略执行
strategy = Strategy1()  # 或者根据条件选择不同的策略
strategy.execute()