class String String : +contains_word(word: str) -> bool 在上面的类图中,我们定义了一个String类,其中包含了一个contains_word()方法,用来判断字符串是否包含某个词。 饼状图
"# 定义一个字符串数组my_array=["Hello","Python","World"] 1. 2. 3. 4. 第二步:遍历字符串数组 forwordinmy_array:# 接下来的步骤会在这里执行 1. 2. 第三步:判断字符串是否包含数组中的任一个字符串 ifwordinmy_string:print(f"{my_string}contains{word}")else:print(f"{my_string}does ...
sheet_name = "Sheet1" match_string = "sales 2022" if check_sheet_name(sheet_name, match_stri...
def check_string(string, char): if char in string: return True else: return False 上述代码定义了一个名为check_string的函数,接受两个参数:string表示待检查的字符串,char表示要检查的特定字符。函数内部使用in关键字来判断char是否在string中,如果存在则返回True,否则返回False。 这个方法可以用于检查一...
Python has several methods to deal with strings. In this tutorial, I’ll show you how to know if a string contains a substring. How to check if a string contains a substring No matter whether it’s just a word, a letter or a phrase that you want to check in a string, with Python...
# Python program to check if a string# contains any special characterimportre# Getting string input from the usermyStr=input('Enter the string : ')# Checking if a string contains any special characterregularExp=re.compile('[@_!#$%^&*()<>?/\|}{~:]')# Printing valuesprint("Entered ...
\w Returns a match where the string contains any word characters (characters from a to Z, digits from 0-9, and the underscore _ character) "\w" Try it » \W Returns a match where the string DOES NOT contain any word characters "\W" Try it » \Z Returns a match if the specif...
check if a number positive , negative or zero Create check if a number positive , negative or zero Oct 18, 2020 check whether the string is Symmetrical or Palindrome.py Added .py extension Aug 1, 2023 check_file.py refactor: clean code Jan 30, 2022 check_for_sqlite_files.py refactor: ...
零索引:字符串中的第一个元素的索引为零,而最后一个元素的索引为 len(string) - 1。例如: 代码语言:javascript 复制 immutable_string="Accountability"print(len(immutable_string))print(immutable_string.index('A'))print(immutable_string.index('y')) ...
The first row contains the string that we want to slice, "Python". The second row shows the position of the indices 0 to 6 in the string. The third row shows the corresponding negative indices. Notice there is no 0 in this row. The fourth row shows the starting locations for our ...