题解 | #翻转单词序列#

#
# 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
#
#
# @param str string字符串
# @return string字符串
#
class Solution:
    def ReverseSentence(self, str: str) -> str:
        stack = []
        new_str = ""
        for word in str.split():
            stack.append(word)
        print(stack)
        while stack:
            str_then = stack.pop()
            new_str += str_then + " "
        new_str = new_str.strip()
        return new_str


# 方案二
class Solution:
    def ReverseSentence(self, str: str) -> str:
        word_list = str.split(" ")
        word_list = word_list[::-1]
        sentence = " ".join(word_list)
        return sentence

比官方题解好，只反转一次就可以完成任务