Big Yellow

知识点一

if简用

• 用if语句写一个简易的密码输入小程序

password_list =['*#*#','123456'] def account_login(): password = input('Password:') if password == '12345': print('Login success!') else: print('Wrong password or invalid input!') account_login() account_login()

• 用if语句写一个简易的修改密码的小程序

def account_login():

   password = input('password:')
   password_correct = password == password_list[-1]
   password_reset = password == password_list[0]
   if password_correct:
       print('Login success!')
   elif password_reset:
       new_password = input('Enter a new password:')
       password_list.append(new_password)
       print('Your password has changed successfully!')
       account_login()
   else:
       print('Wrong password or invalid input!')
       account_login()

account_login()

循环简用

• 小小循环

for num in range(1,11):

   print(str(num)+'+1=',num+1)