2: case2, 3: case3 } option = 2 # 选择case2 # 获取相应的操作 result = switch.get(option, default) # 执行操作 result()在上面的代码中，首先定义了三个函数case1、case2和case3，分别代表三个case，还有一个default函数表示默认操作。然后，将每个case和其对应的操作封装
3: say_how_are_you } choice = 1 if choice in actions: actions[choice]() # This calls the function This works but it’s hard to understand for beginners. And you need to create many small functions. After Python 3.10: The Match-Case Statement In October 2021, Python 3.10 changed every...
可以将每个条件映射到一个函数,然后通过调用函数来实现 switch/case 的功能: python复制代码 def switch_case_example(value): def case_1(): return "Case 1 executed" def case_2(): return "Case 2 executed" def case_3(): return "Case 3 executed" def default_case(): return "Default case exec...
case constant-expression : statement(s); break; /* 可选的 */ /* 您可以有任意数量的 case 语句 */ default : /* 可选的 */ statement(s); } Python: flag = False match (100, 200): case (100, 300): # Mismatch: 200 != 300 print('Case 1') case (100, 200) if flag: # Succes...
上面的例子就是一个字面量模式,使用 Python 自带的基本数据结构,如字符串、数字、布尔值和 None: match number: case 0: print('zero') case 1: print('one') case 2: print('two') 1. 2. 3. 4. 5. 6. 7. 捕捉(Capture) 模式 可以匹配单个表达式的赋值目标。为了演示方便,每个例子都会放到函数中...
Let’s understand this approach with the practical example of using aswitch case in Python with user input. class Switch: def case_1(self): print('You selected Monday') def case_2(self): print('You selected Tuesday') def case_3(self): ...
首先向您展示switchcase语句如何在Java中起作用,以便您了解在Java中期望得到什么。Pythonswitchcase语句,尽管实现方式可能有所不同,但概念仍然相同。继续学习本教程您可以使用任何喜欢的PythonIDE或代码编辑器。 Java切换案例演示如何在一年中的月份之间进行切换,以及在switch语句中找不到匹配项时提供默认结果。
}ifoperator.has_key(key):returnoperator.get(key)(arg1,arg2)else:return'No [%s] case in dic'%key#or do other funcif__name__ =="__main__": fun_case_list('*',3,5) fun_case_list('l',3,4) 或者你可以自己造一个类来实现: ...
Implementation 3: Implementing Python Switch Case statements with if-elif-else: Users can use theif-elif-else statement in Pythonto create a program for decision-making. One can use it instead of theSwitch Case in Python,providing all the switch conditions as decisions in the if and elif bloc...
Explore Python's match-case: a guide on its syntax, applications in data science, ML, and a comparative analysis with traditional switch-case.