Day 6 列表的增删改查以及嵌套

# # li = ['alex','wusir','egon','taibai']
# # #列表的增加。append
# # li.append('梯田')
# # print(li)
# # li.append('1')
# # print(li)
#
#
# #列表的嵌套
# li = ['taibai','武藤兰','原物',['alex','egon',89],23]
# # li[0] = li[0].capitalize()
# # # print(li)
#
#
# #原物换为原日天
#
# # li[2] = '原日天'
# # print(li)
#
#
# # print(li[2].replace('物','日天'))
# # li[2] = li[2].replace('物','日天')
# # print(li)
#
#
# #将alex全部大些，然后更换
# li[3][0] = li[3][0].upper()
# print(li)