不同的是,如果字符不存在于字符串中,find()方法将返回-1,而不会引发异常。 string="Hello, World!"char="o"index=string.find(char)ifindex!=-1:print(f"The first occurrence of '{char}' is at index{index}")else:print(f"'{char}' is not found in the string.") 1. 2. 3. 4. 5. 6....
2. Using theindex()Method (For Finding the First Occurrence) Theindex()method is used to find the index of the first occurrence of a specified element in a list. This method is particularly useful when you need to know the position of a specific element within a list. Here’s an exampl...
"char="o"index=text.find(char)print(f"The first occurrence of '{char}' is at index{index}.") 1. 2. 3. 4. 5. 输出结果为: The first occurrence of 'o' is at index 4. 1. 如果要查找字符串中所有指定字符的位置,可以使用一个循环来多次调用find()方法,并记录每次找到的位置。下面的代码...
test="Python Programming"print("String: ",test)# First one character first_character=test[:1]print("First Character: ",first_character)# Last one character last_character=test[-1:]print("Last Character: ",last_character)# Everything except the first one character except_first=test[1:]print...
Return a copy of the string with only its first character capitalized. For 8-bit strings, this method is locale-dependent. str.center(width[, fillchar]) Return centered in a string of length width. Padding is done using the specified fillchar (default is a space). ...
Thefind()method returns the index of first occurrence of the substring (if found). If not found, it returns-1. Example message ='Python is a fun programming language' # check the index of 'fun'print(message.find('fun')) # Output: 12 ...
Write a Python program to find the first repeated character in a given string where the index of the first occurrence is smallest.Visual Presentation:Sample Solution:Python Code:# Define a function that finds the first repeated character in a string with the smallest distance between the ...
❮ String Methods ExampleGet your own Python Server Where in the text is the word "welcome"?: txt ="Hello, welcome to my world." x = txt.find("welcome") print(x) Try it Yourself » Definition and Usage Thefind()method finds the first occurrence of the specified value. ...
To ignore escape sequences in the string, we make the string as"raw string" by placing "r" before the string."raw string"prints as it assigned to the string. Example #ignoring escape sequences#ignoring single quote escape sequencesstr1=r"Hi, I\'m IncludeHelp"#ignoring double quotes esca...
s.endswith(suffix) # Check if string ends with suffix s.find(t) # First occurrence of t in s s.index(t) # First occurrence of t in s s.isalpha() # Check if characters are alphabetic s.isdigit() # Check if characters are numeric s.islower() # Check if characters are lower-case...