题解 | #单词倒排#
单词倒排
https://www.nowcoder.com/practice/81544a4989df4109b33c2d65037c5836
判断字符
是alpha还是num：
str.isalpha() str.isnum()
连接字符
''.join(list)#直接连接 ' '.join(list)#空格连接 '-'.jion(list)# ‘-’连接
list倒序
a = list([1,2,3,5,6]) a.reverse() a = a[::-1]
完整代码
a = input()
aa = ''
for i in a:
if i.isalpha():
aa = aa + i
else:
aa = aa + ' '
b = list(aa.split())
b.reverse()
#b = b[::-1]
print(' '.join(b))