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 = [] result= [] stack = str.strip().split() while stack: result.append(stack.pop()) return ' '.join(result) # write code here