Last update on March 28 2025 12:54:14 (UTC/GMT +8 hours) 8. Reverse a String Word by Word Write a Python class to reverse a string word by word. Sample Solution: Python Code: classpy_solution:defreverse_words(self,s):return' '.join(reversed(s.split()))print(py_solution().reverse...
代码:oj在线测试通过 Runtime: 172 ms 1classSolution:2#@param s, a string3#@return a string4defreverseWords(self, s):5words = s.split('')67iflen(words) < 2:8returns910tmp =""11forwordinwords:12word = word.replace('','')13ifword !="":14tmp = word +""+tmp1516tmp =tmp.str...
Given an input string, reverse the string word by word. For example, Given s = "the sky is blue", return "blue is sky the". click to show clarification. Clarification: What constitutes a word? A sequence of non-space characters constitutes a ...
Yes. However, your reversed string should not contain leading or trailing spaces. How about multiple spaces between two words? Reduce them to a single space in the reversed string. fromcollectionsimportdequeclassSolution(object):defreverseWords(self,s):""":type s: str:rtype: str"""ifs==''...
Given an input string, reverse the string word by word. Example 1: Input: "the sky is blue" Output: "blue is sky the" 1. 2. Example 2: Input: " hello world! " Output: "world! hello" Explanation: Your reversed string should not contain leading or trailing spaces. ...
def reverse_string_by_word(s): lst = s.split() # split by blank space by default return ' '.join(lst[::-1]) s = 'Power of Love' print reverse_string_by_word(s) # Love of Power s = 'Hello World!' print reverse_string_by_word(s) # World! Hello ...
原题地址:https://oj.leetcode.com/problems/reverse-words-in-a-string/ 题意: Given an input string, reverse the string word by word. For example,Given s = "the sky is blue",return "blue is sky the". 解题思路:这题很能体现python处理字符串的强大功能。 代码: class Solution: # @param ...
Programming'string_reversed=test_string[-1::-1]print(string_reversed)string_reversed=test_string[::-1]print(string_reversed)# String reverse logically defstring_reverse(text):r_text=''index=len(text)-1whileindex>=0:r_text+=text[index]index-=1returnr_textprint(string_reverse(test_string))...
2. Key和reverse必须作为关键字参数传递, 这与Python2版本的不同在于,在python2中,它们可以作为位置参数传递。 如果需要将Python2中的cmp函数转换为键函数, 请查看functools.cmp_to_key()。(本教程不会涵盖使用Python 2的任何示例) sorted()也可以在元组和集合上使用, 和在列表的使用非常相似: ...
String[2 : : ] => start = 2, stop = 字符串长度, step = 1 字符串[ :2: ] => 开始 = 0,停止 = 2,步长 = 1 String[:6] OR String[1:6] => 是有效的语法,因为“step”是此操作的可选参数。 Slice 是一个只需要三个参数的操作,而且可以用它做更多的事情。让我们看一些示例,这些示例将...