Python Learning Path 2

This is my homework on the college lab.

Experiment One

decomposes a positive integer factorization. For example: Enter 90 and print out 90=2*3*3*5.

First of all, let's talk about my design ideas:

Design ideas:

1. First you need to determine whether the number entered is a digit ( with isdigit ()) If it is a number continue to go down, otherwise re-enter

2. Write a decomposition factorization function and return the result to a list

3. Use a For loop to get the format of the topic in the form of a string addition

4. Finally print out the results

Here is my code, first time learning, a little bit long.

1 Related code:2 defjudeg_prime (num):3     " "determines if num is a prime number, or returns False if it returns True" "4number_list=[]5      forIinchRange (1,num+1):6         ifnum%i==0:7 number_list.append (i)8     ifLen (number_list) ==2 andNumber_list[0]==1 andnumber_list[1]==Num:9         returnTrueTen     Else: One         returnFalse

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1 defA (num):2     " "decomposes num (not 0 and non-prime number) factorization and returns a list" "3      forIinchRange (2,num+1):4         ifnum%i==0:5 prime_list.append (i)6Num=int (num/i)7             ifjudeg_prime (num):8 #If NUM is a prime number, it is added after the list and returns9 prime_list.append (num)Ten                  Break One             Else:#Otherwise, the function A () continues to execute A                 returnA (num) -     returnPrime_list

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1 " "execution port of the program" "2  whileTrue:3Prime_list = []4     Print('-----Decomposition Factorization-----')5Number=input ('Enter a positive integer (enter 0 to exit the program):')6     ifNumber.isdigit ():#determine if number is numeric to avoid error7Number=Int (number)8         ifnumber==0:9             Print('The program is over! ')Ten              Break One         elifNumber = = 1:#if the input is 1 A             Print('1=1*1') -         elifJudeg_prime (number):#if the input is a prime number -             Print('%s=1*%s'%(number, number)) the         Else: -Count=1 -Prime_list =A (number) - #Divide number into factorization and return to Prime_list +PRIMER=STR (number) +'=' -              forIinchprime_list: +                 ifcount==Len (prime_list): Aprimer=primer+Str (i) at                 Else: -Primer = primer + str (i) +'*' -Count+=1 -             Print(primer)#Print Results -     Else: -         Print('Please enter a positive integer')

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I feel that writing is not concise, please forgive me

Python Learning Path 2