# Good - specific cases first def check_number(x): match x: case 0: # Check specific values first return "Zero" case _: # General case last return "A number" Summary: What We’ve Learned Python’s journey to get
}# 根据输入的case值执行相应的函数case_value ='2'ifcase_valueincases: cases[case_value]()else:print("未找到对应的case") 在这个示例中,我们首先定义了三个处理函数case1、case2和case3,然后创建了一个字典cases,将每个case和对应的函数关联起来。最后根据输入的case值在字典中查找对应的处理函数并执行。...
switch(expression){casevalue1:// Code to be executed if expression is equal to value1break;casevalue2:// Code to be executed if expression is equal to value2break;default:// Code to be executed if expression doesn't match any cases} Python Switch Statement Using Dictionaries While Python d...
Python does not provide any built-in technique to use Switch Case statements but gives alternative options. Programmers can use the three different implementations, i.e., dictionary mapping,if-elif-else statements, or classes to implement Switch Cases in Python. Further, the article provided applica...
In this Python tutorial, you will learn how to use switch cases in Python with user input in multiple ways and some practical examples based on real-world scenarios. Generally, we use if-else statements in Python when there are only two possibilities: the user can input only (YES / NO)....
cases[case]() else: stateDefault() deftest(): switch('b') switch('c') switch('a') switch('x') test() 如果每个分支需要处理的逻辑很少,更是可以用lamdba简化,如下: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
Here’s the Python implementation of the above switch statement. In the following example, we create a dictionary named switcher to store all the switch-like cases. def switch_demo(argument): switcher = { 1: "January", 2: "February", 3: "March", 4: "April", 5: "May", 6: "June...
python中Switch/Case实现 学习Python过程中,发现没有switch-case,过去写C习惯用Switch/Case语句,官方文档说通过if-elif实现。所以不妨自己来实现Switch/Case功能。 方法一 通过字典实现 deffoo(var):return{'a':1,'b':2,'c':3, }.get(var,'error')#'error'为默认返回值,可自设置 ...
As suggested by Pierre Quentel, you can even expand upon thefunctionality of the classic 'case' statement by matching multiplecases in a single shot. This greatly benefits operations such as theuppercase/lowercase example above:import stringc = 'A'for case in switch(c):if case(*...
关于在Python中选择不同的switch-case替换:在Python中使用不同的switch-cases替换 – 字典或if-elif-else? Choosing between different switch-case replacements in Python - dictionary or if-elif-else? 我最近读了一些建议不要在支持它的语言中使用switch case语句的问题。至于python,我已经看到了许多交换盒替换,...