题目21:倒叙取出每一个单词的第一个字母,I am a good boy!
方法1:
#encoding=utf-8
s="I am a good boy"
result=[]
for i in s.split()[::-1]:
result.append(i[0])
print(result)
方法2:
#encoding=utf-8
s="I am a good boy"
s=s.split()
s.reverse()
result=[]
for i in s:
result.append(i[0])
print(result)