match语句后跟一个表达式,然后使用case语句来定义不同的模式。 case后跟一个模式,可以是具体值、变量、通配符等。 可以使用if关键字在case中添加条件。 _通常用作通配符,匹配任何值。实例1. 简单的值匹配实例 def match_example(value): match value: case 1: print("匹配到值为1") case 2: print("匹配到值...
match http_status:# 💁♂️ Note we don't match a specific value as we use "_" (underscore)# 👇✅ Match any value, as long as status is between 200-399case _asstatusifstatus >= HTTPStatus.OKandstatus < HTTPStatus.BAD_REQUEST: print(f"✅ Everything is good!{status = }...
matchvalue:case'a':print('The value is "a"')case'b'|'c':print('The value is "b" or "...
Note:Thematch..casestatement was introduced in Python3.10and doesn't work on older versions. It is similar to theswitch…casestatement in other programming languages such as C++ and Java. Now, let's look at a few examples of thematch..casestatement. Example 1: Python match...case Statement...
match-case是python3.10+的新特性,可以理解为python中的switch-case。如果你想要使用它,请注明所需python>=3.10. 基本语法和语义 match <表达式>: case <值1>: <语句块1> case <值2> | <值3> | <值4> : <语句块2> case _: <语句块3>
matchtoken:case'let':return'VARIABLE'case'if':return'CONDITIONAL'case'else':return'ALTERNATIVE'case...
match、case、_ python3.10新增的关键字,用于匹配语句,相当于其它语言中的分支结构switch-case。 之前的python版本中,一直由if...elif...[elif...]else来代替。 def process_data(data):match data:case 1:return "数据为1"case 2:return "数据为2"case 3:return "数据为3"case _:return "未知数据"print...
match n: case n if n < 0: print(f"{n}: negative value") case n if n == 0: print(f"{n}: zero") case n if n > 0: print(f"{n}: positive value") The example chooses a random integer. Withmatch/casewe determine, if the value is negative, zero, or positive. ...
# <project_root>/tests/test_my_second_function.py import unittest import azure.functions as func from function_app import main class TestFunction(unittest.TestCase): def test_my_second_function(self): # Construct a mock HTTP request. req = func.HttpRequest(method='GET', body=None, url='...
def p_expression(p): '''expression : expression "+" term | expression "-" term | term''' match p[2]: case "+" if len(p) > 3: p[0] = p[1] + p[3] case "-" if len(p) > 3: p[0] = p[1] - p[3] case _ if len(p) == 2: p[0] = p[1] 你当然可以可以将...