Writing a simulated user login in Python

Readme: Involving Python knowledge points

• Data type
• User-to-program interaction
• While loop
• If.. else judgment

Approximate flowchart:

Basic requirements:

• Let the user enter the user name password
• Show welcome message after successful authentication
• Exit the program after a three-time error

user_info={    ' oath ': {' password ': ' 123 '},    ' oath1 ': {' password ': ' 123 '},    ' oath2 ': {' password ': ' 123 '},} Count = 0while True:    if count>2:        break    name=input ("Please enter the user name:")    if not name in user_in FO:        print ("The user does not exist")        count+=1        continue    passwd=input ("Please enter a secret:")    if passwd = = user_info[name]["Password"]:        print ("Welcome to You") Break    Else:        print (' wrong Password ')        count+=1

　　

Upgrade Requirements:

• Can support multiple users login (prompt, through the list to save multiple account information)
• After the user 3 authentication failed, quit the program, start the program again when attempting to log on, or lock the status (hint: the user locked state must be stored in the file)

Writing a simulated user login in Python