第七章

7.1 Input函数

msg=input('请输入：')

print(msg)

7.1.2 使用int()获取数值输入

 

7.2 while循环

current=1

while current <= 5 :

print(current)

current += 1

退出循环  break

跳过 continue

7.3 while循环处理列表和字典

7.3.1 列表循环

users=['user1','user2','user3']

while users:

cuser=users.pop()

print(cuser)

7.3.2 删除列表重复元素

users=['user1','user2','user3','user1']

while 'user1' in users

users.remove('user1')