Design and development of python-object-oriented programming

Programming Paradigm

1, the different types of tasks, the use of different ways to solve the problem.

2. There are two kinds of programming paradigm

1. Process-oriented programming

2. Object-Oriented Programming

process-oriented programmingWhat is process-oriented programming?

Process-Steps to solve the problem

To solve a big problem

1, first to split the big problem into a number of small problems or sub-processes.

2. Then the sub-process is split into small problems or sub-processes

3, until the small problem can be solved in a small step in the range.

What are the pros and cons?

Advantages: The complexity of the problem flow, programming difficult.

Cons: Poor scalability

Write code:

Write a simple user registration program

#1 Write a user registration program#process-Oriented programming methods:#1. User Input account password#2. User input Legality detection#3. Write to Input library#Note:#Advanced : How do I change the email registration function when I need to increase it? ImportJSONdefInteractive ():#Step 1user = input ('>>'). Strip () PSW= Input ('>>'). Strip ()return {        'name': User,'pwd': PSW}defCheck (User_info):#Step 2Is_value =TrueifLen (user_info['name']) ==0:Print('user name cannot be empty') Is_value=FalseifLen (user_info['pwd']) < 6:        Print('password cannot be less than 6 bits') Is_value=Falsereturn {        'Is_value': Is_value,'User_info': User_info}defRegister (Check_info):#Step 3    ifcheck_info['Is_value']: with open ('json.db','W', encoding='Utf-8') as F:json.dump (check_info['User_info'], F)defMain (): User_info= Interactive ()#Step 1Check_info = Check (user_info)#Step 2Register (Check_info)#Step 3if __name__=='__main__': Main ()

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Increase input Email Registration

#1 Write a user registration program#process-Oriented programming methods:#1. User Input account password#2. User input Legality detection#3. Write to Input library#Note:#Advanced : How do I change the email registration function when I need to increase it? ImportJson,redefInteractive ():#Step 1user = input ('>>'). Strip () PSW= Input ('>>'). Strip () email=input ('>>'). Strip ()return {        'name': User,'pwd': PSW,'Email': Email}defCheck (User_info):#Step 2Is_value =TrueifLen (user_info['name']) ==0:Print('user name cannot be empty') Is_value=FalseifLen (user_info['pwd']) < 6:        Print('password cannot be less than 6 bits') Is_value=Falseif  notRe.search (R'@.*?\.com$', user_info['Email']):        Print('Bad mailbox Format') Is_value=Falsereturn {        'Is_value': Is_value,'User_info': User_info}defRegister (Check_info):#Step 3    ifcheck_info['Is_value']: with open ('json.db','W', encoding='Utf-8') as F:json.dump (check_info['User_info'], F)defMain (): User_info= Interactive ()#Step 1Check_info = Check (user_info)#Step 2Register (Check_info)#Step 3if __name__=='__main__': Main ()

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Application scenarios?

Once the feature is implemented, few changes are made to the scene. Scenarios such as automatic deployment scripts.

Object-oriented programming what is object-oriented programming?

What are the pros and cons?

Application scenarios?

Design and development of python-object-oriented programming