为了更好地理解字符串判断的过程,我们可以绘制一个简单的ER图,帮助我们更好地做出判断。 STRINGstringvalueboolcontainsCONTAINSincludes 在上面的图中,STRING表示我们要判断的字符串,而CONTAINS关系则表示我们对字符串中是否包含特定内容的判断逻辑。 4. 甘特图 — 字符串处理的任务计划 处理中文字符串时,我们常常需要进...
"I love Python Programming"contains"Python"=True"I love Python Programming"contains"python"=False"I love Python Programming"contains"Java"=False"I love Python Programming"contains"Python" Copy If you are not familiar with f-prefixed strings in Python, it’s a new way for string formatting intr...
在Python中,可以使用in关键字来判断一个字符串是否包含在另一个字符串中。下面是一个示例: string="Hello, world!"if"world"instring:print("The string contains 'world'.")else:print("The string does not contain 'world'.") 1. 2. 3. 4. 5. 6. 在上面的代码中,我们首先定义了一个字符串string,...
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...
Another way to check if a string contains a substring in Python is by using thefind()method. It returns the index of the first occurrence of the substring within the string. If the substring is not found, it returns -1. Here’s an example: ...
Using the Python string contains method 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...
print(any(c.isalpha()forcinmy_string1))# Check if letters are contained in string# True As you can see, the logical value True has been returned, i.e. our first example string contains alphabetical letters. Let’s apply exactly the same Python syntax to our second string: ...
# Check if scraped information contains offers else move on if "nemovitostí" or "nemovitosti" or "nemovitost" in offers: pass else: offers = "" 由于if语句应该查找字符串集,否则if找不到则应该在else语句下执行任何其他代码,因此我似乎无法理解数据是怎么可能进入的。没有错误代码或警告,它只是拾取数据...
print("The string is long") else: print("The string is short") 子字符串检查 要检查一个字符串是否包含另一个字符串(即子字符串),可以使用in关键字: text = "This is a sample text." if "sample" in text: print("The text contains the word 'sample'.") ...
In this case, however, the value of the module’s__name__is different. It points to"namemain", a string that’s equal to the module’s name. Note:You can import any file that contains Python code as a module, and Python will run the code in your file during import. The name of...