my_string = "ABCDE" reversed_string = my_string[::-1] print(reversed_string) # Output # EDCBA 1. 2. 3. 4. 5. 6. 7. 8. 9. 2、首字母大写 下面的代码片段,可以将字符串进行首字母大写,使用的是 String 类的 title() 方法: my_string = "my name is chaitanya baweja" # using the ...
判断字符串是否回文 通过反转字符串,再和原字符串比较,可以判断是否为回文,示例如下: my_string = "abcba"if my_string == my_string[::-1]:print("palindrome")else: print("not palindrome")# Output# palindrome 1. 统计列表元素的个数 有多种方式可以实现这个技巧,但我最喜欢的是采用 Counter 类。 Co...
string_1 = "My name is Chaitanya Baweja" string_2 = "sample/ string 2" # default separator ' ' print(string_1.split()) # ['My', 'name', 'is', 'Chaitanya', 'Baweja'] # defining separator as '/' print(string_2.split('/')) # ['sample', ' string 2'] 8. 将字符串列表...
1# Reversing a string using slicing 3my_string = "ABCDE" 4reversed_string = my_string[::-1] 6print(reversed_string) 8# Output 9# EDCBA 在这篇文章(https://medium.com/swlh/how-to-reverse-a-string-in-python-66fc4bbc7379)中,你可以了解更多细节。 首字母大写 下面的代码片段,可以将字符串...
my_string ="abcba" ifmy_string == my_string[::-1]:print("palindrome")else:print("not palindrome") # Output# palindrome 统计列表中元素的次数 # finding frequency of each element in a listfromcollectionsimportCounter my_list = ['a','a','b','b','b','c','d','d','d','d','...
my_string = "abcba" m if my_string == my_string[::-1]: print("palindrome") else: print("not palindrome") # Output # palindrome 10. 列表的要素频率 有多种方式都可以完成这项任务,而我最喜欢用Python的Counter 类。Python计数器追踪每个要素的频率,Counter()反馈回一个字典,其中要素是键,频率是...
1、注意空字符串的处理;2、注意是alphanumeric字符;3、字符串添加字符直接用+就可以; 1 class Solution: 2 # @param s, a string 3 # @return a boolean 4 def isPalindrome(self, ...
“race a car” is not a palindrome. Note: Have you consider that the string might be empty? This is a good question to ask during an interview. For the purpose of this problem, we define empty string as valid palindrome. 给定一个 字符串。推断是否是一个回文串,注:这道题中默认空串是回...
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Write code to check if a sequence is a Palindrome in Python. How would you make 3D plots/visualizations using NumPy/SciPy? Given its URL address, how would you save an image locally using Python? How would you get the Google cache age of any URL or web page? How would you get indices...