substring = "Hello" if string.contains(substring): print("字符串包含子字符串") else: print("字符串不包含子字符串") 复制代码 运行结果为: 字符串包含子字符串 复制代码 请注意,contains()方法在Python中并不存在。如果要检查一个字符串是否包含另一个字符串,可以使用in关键字。使用方法如下: substring i...
The python str class has a __contains__() method that will check if a python string contains a substring. It will return true if it’s found and will return false if it’s not. You will notice that the method name is wrapped in two underscores. This prevents this method from being ...
To check if a Python string contains a substring, you can use theinoperator. It returnsTrueif the substring is found within the string, andFalseotherwise. For example,if "hello" in "hello world":will evaluate toTrue. Table of Contents Using the in Operator The simplest way to check if a...
Get Your Code:Click here to download the free sample codethat you’ll use to check if a string contains a substring. Take the Quiz:Test your knowledge with our interactive “How to Check if a Python String Contains a Substring” quiz. You’ll receive a score upon completion to help you...
contains‘子字符串方法？EN如果这只是一个子串搜索，你可以使用string.find("substring")。
2. Usingfind()to check if a string contains another substring We can also usestring find() functionto check if string contains a substring or not. This function returns the first index position where substring is found, else returns -1. ...
# 定义原始字符串string1="欢迎来到Python开发世界!"# 定义要查找的子字符串substring="Python"# 方法1:使用 in 关键字ifsubstringinstring1:print("包含!")else:print("不包含!")# 方法2:使用 str.find() 方法ifstring1.find(substring)!=-1:print("包含!")else:print("不包含!")# 方法3:使用 str....
确定要判断的原始字符串:假设原始字符串为original_string。 确定要在原始字符串中查找的子字符串:假设要查找的子字符串为substring。 python original_string = "Hello, world!" substring = "world" # 使用in关键字判断 if substring in original_string: print(f"The original string contains the substring '{...
contains函数的基本语法 在Python中,contains函数是一个字符串方法,它用于检查一个字符串是否包含另一个字符串。它的基本语法如下: string.contains(substring) 1. 其中,string是要检查的字符串,substring是要查找的子字符串。 contains函数将返回一个布尔值,表示是否找到了子字符串。如果找到了,返回True;如果没有找到...
contains方法返回一个布尔值,如果目标字符串出现在原始字符串中,则返回True,否则返回False。 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 ...