删除单词后缀

解题思路:

注意事项:需要判断单词删除后缀后是否为0

参考代码:

n=input()

if ((n[-2::]=='er') and (len(n)!=2)):

    print(n[:-2:] )

elif ((n[-2::]=='ly')and (len(n)!=2)):

    print(n[:-2:])

elif (n[-3::]=='ing' and (len(n)!=3)):

    print(n[:-3:])

else:

    print(n)