题解 | #翻转单词序列#

from re import S
#
# 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:
        # write code here
        if not str:
            return ""
        ss=str.split(" ")
        s=[]
        for i in ss:
            s.insert(0,i)
        return " ".join(s)