Day 8 列表的嵌套

li = ['taibai','张勤奋','男神','张远见']
# print(li[1][1])
# li.upper([0])
# print(li)
# name = li[0].capitalize()
# li[0] = name
# print(li)

# li[1] = '张日天'
# print(li)
print(li[1].replace('张勤奋','张日天'))

li[1] = li[1].replace('张勤奋','张日天')
print(li)