'in:False': min(timeit.repeat(lambda: in_('superstring', 'not'))), '__contains__:True': min(timeit.repeat(lambda: contains('superstring', 'str'))), '__contains__:False': min(timeit.repeat(lambda: contains('super
这个函数适用于字符串、列表、元组、字典等各种Python内置数据类型。 使用示例 下面是一个简单的示例,演示了如何使用contains函数来判断一个字符串是否包含指定的子串: defcontains(string,sub_string):ifsub_stringinstring:returnTrueelse:returnFalse# 测试string="Hello, World!"sub_string="World"result=contains(st...
下边内容是关于python判断字符串(string)是否包含(contains)子字符串的方法的内容。 方法2:使用find函数实现contains的功能 s = "This be a string" if s.find("is") == -1: print "No 'is' here!" else: print "Found 'is' in the string."...
下面是使用contains方法的示例代码: ```python string = "Hello, world!" substring = "world" if substring in string: print("Substring is present in the string.") else: print("Substring is not present in the string.") ``` 输出结果是:"Substring is present in the string."©...
if "World" in my_string: print("\"World\" is in the string") else: print("\"World\" is not in the string") 检查元素是否存在于集合中: python my_set = {1, 2, 3, 4, 5} if 3 in my_set: print("3 is in the set") else: print("3 is not in the set") 注意,in 关键字...
It returnsTrueif “sub” string is part of “str”, otherwise it returnsFalse. Let’s look at some examples of usinginoperator in Python. str1='I love Python Programming'str2='Python'str3='Java'print(f'"{str1}" contains "{str2}" ={str2instr1}')print(f'"{str1}" contains "{...
Learn how to check if one Python string contains another using the contains () method. This case-sensitive instance method returns True or False based on …
字符串 string ✔️ 筛选数据时所依据的区分大小写的字符串。 返回 T 中的 col 中包含 string 的行。 示例 运行查询 Kusto 复制 StormEvents | summarize event_count=count() by State | where State contains "enn" | where event_count > 10 | project State, event_count | render table 输出...
问如何使用__contains__ / " in“关键字在Python列表中搜索对象？EN__contains__是在容器上调用的...
在Python 中,最常用的方式是使用in关键字来检查一个字符串是否包含另一个字符串。以下是基本的语法。 substringinstring 1. 示例代码 # 检查字符串包含关系string="Hello, welcome to Python programming!"substring="Python"ifsubstringinstring:print(f"'{substring}' is found in the string.")else:print(f"...