) + Pow (int (s[1]), 3) + POW (int (s[2]), 3) = = I:print (i, end= ",") Answer3 () def answer4 (): "" "The collar uses the Divmod function to calculate : Return: "" " Print ("\ n Output four", end= ":") for I in range (+): M = i sumnum = 0 while m > 0: M, n = Divmod (M, ten) Sumnum + = n * * 3 if Sumnum = = I:print (i, end= ",") Answer4 () def answer5 ( ): "" is implemented using the list for if usage: return: "" "Print (" \ n Output five ", end=": ") L = [I for I in range (+) if (I//1 * *
1, Analog CP command Copy file (image, video) to other pathsWithopen (' a.txt ', ' RB ') asf,open (' B.txt ', ' WB ') aswrite: #选择rb模式, support all copies, the corresponding write mode is WB, directly processing is the bytes type for lineinf: #遍历源文件的每一行 write.write (line) #写入新文件write中 However, this does not support the user to pass parameters, so the final code is as follows:Import Sysif len (SYS.ARGV) 2, Python simulation tail command, displ
"" "Title: Output 9*9 multiplication table. "" "Def Answer1 ():" " in the most common double loop to output : return:" "" print ("Output One:") for I in range (1): For j in range (1, i + 1): print ("%d x%d =%2s"% (i, J, I * j), end= " ") print () answer1 () def answer2 (): The "" " while loop, with another formatting note for print percent (%) formatted output, sets the output format for the flag with%, and the fomate format is formatted with a colo
":"Mouse"," Price": 10}, {"name":"Yacht"," Price": 20}, {"name":"Beauty"," Price": 998},]Print("enter 0 to buy a computer, enter 1 to buy a mouse, enter 2 to buy a yacht, enter 3 to buy a beauty, enter another value, settle the cart") Li=[]total= Input ("Please enter the total amount:") whileTrue:num= Input ("Enter the serial number you want to purchase:") ifint (num) = =0:li.append (goods[0][' Price']) elifint (num) = = 1: Li.append (goods[1][' Price']) elifint (num) = = 2: Li.ap
1. Sort a list of numbers from small to large, then write to the file, then read the contents of the file from the file,And then reversed, in the next line appended to the fileList = [67, 234, 35, 14, 18, 6, 9, 5]List.sort ()With open (' 20171030 ', ' W ') as F:F.write (str (list) + ' \ n ')With open (' 20171030 ', ' R ') as F:A=f.read ()List.reverse ()With open (' 20171030 ', ' a ') as F:F.write (str (list))2. Write the string, list, tuple, dict to the file, respectivelystring = ' Awen 'list=[1
After registering deep learning on Cousera, you can download the after-class exercise.1. After entering the programming environment, click File-open in the upper left corner to enter the file management mode2. Click on the Red Circle folder to enter the root directory3. In the top right corner of the root directory, new one IPYNB4. Open the new IPYNB, enter and do the following, you can compress the files in the root directory into a zip format, download the zip file to get all the programming c
Python is a dynamic type language, and the language characteristic of a type language determines how complicated he is. #简单的输出打印 #coding=utf-8import time; # This was required to include time Module.word = ' word ' sentence = "This is a sentence." Paragraph = "" "This is a paragraph. It ismade up of multiple lines and sentences. "" " Print paragrapha,b,c=1,2, "aaa" #List类似数组list = [' ABCD ', 786, 2.23, ' John ', 70.2]if word== ' word ': print paragrap
assigned to two variables respectively . Wu ifuser = = Username andPWD = =Password: - Print("Welcome to%s login System. "%(Username.title ()) AboutFlag =True $ Break #Jump out of the current for loop - -Whiltelists.close ()#Close File - A ifFlag =True: + Break #Jump out while loop the Else: - ifRetry #the message is not printed after the third attempt error $ Print("user name or password input error, please re-e
description:> Input data has multiple groups, one row for each group, including a sentence (sentence length less than 1000 characters)-Output Description:> For each test example, it is required to output sentences that are formed after the word reversal in the sentence-Example 1:```-InputHello Xiao mi-OutputMi Xiao Hello4. # (2017-Good future-written test programming questions)--list practice-Title Description:Enter two strings, removing all the characters from the second string from the first
output four: ") a = [[1, 2], [3, 4]] B = a[:] Validate (A, B) answer4 () def ANSWER5 (): "" "Deep copy Copy.deepcopy:return:" "" Print ("\ n output five:") a = [[1, 2], [3, 4]] B = Copy.dee Pcopy (a) validate (a, B) Answer5 () def ANSWER6 (): "" "Shallow copy copy.copy, with Answer3:return:" "" Print ("\ n output six:") A = [[1, 2], [3, 4]] B = copy.copy (a) validate (a, B) Answer6 () def answer7 (): "" "Use list generation using a list of for processing, as if the generator : Return: ""
6 common python errors and solutions for beginners and 6 python reports for beginners
This article lists some common errors for new users to write code. Some errors are careless. However, for new users, it takes a long time to solve them. So I will summarize some of the problems I encountered here. I hope to help my new friends.
1. The NameError variable name is
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