leetcode151

class Solution:
    def reverseWords(self, s: str) -> str:
        s = s.strip()
        ary = s.split(' ')
        temp = []
        for string in ary:
            if len(string) != 0 and string != '':
                temp.append(string)
        for i in range(len(temp)):
            temp[i] = temp[i][::-1]#当前字符串反转
        
        return " ".join(temp)[::-1]#整个字符串反转

与剑指Offer 58题相似，增加了对空白字符的处理。