使用len()函数检查字符串长度 在Python中,我们可以使用内置函数len()来获取字符串的长度。len()函数返回字符串中的字符数,包括空格和标点符号。下面是一个简单的示例: # 定义一个字符串str="Hello, World!"# 使用len()函数获取字符串的长度length=len(str)print("字符串的长度为:",length) 1. 2. 3. 4....
The Pythonlen()is used to get the total number of characters present in the string and check if the length of the string is 0 to identify the string is empty. Actually, thelen()function returns the length of an object. The object can be a string, a list, a tuple, or other objects ...
# 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 ...
# Python program to check if a string contains the substring# using in operator# Initializing stringstring ='Hi this is STechies sites'# Use in operator with if statement# to check if string contains substringif'STechies'instring:print('String found')else:print('String not found') Output: ...
length_of_string(str1) length_of_string(str2) Output: Input is not a String 9 You can also use type() function rather than isInstance here. That’s all about how to check if variable is String in Python Was this post helpful? Let us know if this post was helpful. Feedbacks are ...
Using len() Function to Check if a String is Empty or Whitespace in Python Thelen()function is used to find the length of an iterable object such as a list, string, tuple, etc. It takes the iterable object as its input argument and returns the length of the iterable object. ...
# Python program to check if a string is # palindrome or not # function to check palindrome string def isPalindrome(string): result = True str_len = len(string) half_len= int(str_len/2) for i in range(0, half_len): # you need to check only half of the string if string[i] ...
public class Demo { public static void main(String []args) { String str = "5demo9"; System.out.println("String: "+str); if(str.matches("[0-9]+") && str.length() > 2) { System.out.println("String contains only digits!"); } else { System.out.println("String contains digits ...
The difference between two sets in python is equal to the difference between the number of elements in two sets. The symmetric_difference will return one set with zero elements. Then we can check if the length of both sets is equal. Example This example tests whether two sets num1 and ...
Learn, how to check whether a variable exists or not in Python. Checking global variable To check if a global variable exists or not in…