Read about python exercises with solutions, The latest news, videos, and discussion topics about python exercises with solutions from alibabacloud.com
title: There are four numbers: 1, 2, 3, 4, how many different and no repetition of the number of three digits? What's the number?Program Analysis: can be filled in hundreds, 10 digits, single digit numbers are 1, 2, 3, 4. Make all the permutations and then remove the permutations that do not meet the criteria.Program Source code:Source:#!/usr/bin/python#-*-Coding:utf-8-*- For I Inch Range(1,5): For J Inch Range(1,5): For K Inch Range(1,5):If( I! = k)
Beginners are watching the 2nd edition of the basic Python tutorial, which is very good, but there is no after-school exercises. This is a beginner's inability to understand the basics deeply.The best way to get to the Python exercises, it is better to follow the above "Basic Pytho
)Print Len (Eachline.split ())Print map (func,eachline)str1 = ' 12345 'str2 = ' Efghi 'Print map (NONE,STR1)def chuli (line):return Line.strip ('/n ')Filename= ' 2.txt 'F=open (filename, ' R ')Lines=f.readlines ()F.close ()Choosen=0While not choosen:File_choose=raw_input ("Which file would you save? Choose:(N) EW file(O) LD file‘‘‘)Choose=file_choose.strip () [0].lower ()If choose not in ' no ':print ' Choose Invalid 'Elif choose== ' n ':File=raw_input (' Enter your new file name: ')Choosen=1Els
+ 1) * 2 + = 1print(x)" "Define a function: Count the number of letters, spaces, numbers, and other characters in the incoming string, and return the {' Letter ':, ' space ':, ' number ':, ' other characters: '} as a dictionary ." "defCount_types (s):#define a dictionary firstDict = {"Letters": 0,"Space": 0,"Digital": 0,"Other characters": 0}#iterate through each value in the string forIinchS:ifI.isalpha (): dict["Letters"] + = 1#key value access, direct self-add elifi.isspace ():
Basic knowledge Exercises (I.)1. Two ways to execute a python script(1). Interactive mode: Start the Python interpreter and execute the command (2). Scripting: Python xxx.py or chmod +x ./xxx.py2. Briefly describe the relationship between bits and bytesOne byte equals 8 bits, while 1 bits are stored in binary form at t
Original question:1 fromSysImportargv2 3Script, first, second, third =argv4 5 Print "The script is called:", Script6 Print "Your First variable is:", First7 Print "Your Second variable is:", Second8 Print "Your Third variable is:", thirdNote here: the argv---Equivalent to the $ parameter in the shell, parameter 1, parameter 2 = argv #之后参数的引用就和这个先后顺序有关了In the third article of the study drill it gives: Combine raw_input with argv to make a script this gets more input from a user. Requires a scrip
Basic python exercises-Simple user card management (not the full version)The first thing to note is that the system is not completely written, and only a few simple functions are implemented. Of course, other functions are similar. The knowledge point used is also the simplest syntax knowledge. It is mainly used as a beginner like me to practice, so the code is not so perfect, and the structure is not neces
If you encounter problems that cause you pain in game exercises, the following articles will solve the problems encountered in the actual operations on game exercises in Python core programming, and detailed analysis of the relevant code, the following is a detailed introduction of the article. A game exercise in Python
If you really want to learn, learn what is not studious, if really want to learn the acme of Python, almost what they want to do, it is necessary to make perseverance, persist.Then continue to update the Python Exercise 2, by updating the previous exercises to learn a lot of things1. take any amount less than US $1, and then calculate what kinds of coins can be e
Last week, I bought a book called "Fun to learn Python programming" (English name: Python for kids), yesterday after reading the book after the title has been done. As the 1th and 2 chapters do not have exercises, the 13th chapter and then are descriptive examples of the chapters, so this summary of the article contains only the 第3-12 chapter of the exercise answ
! " Break Else : Pass2-11#!/usr/etc/env python#-*-coding:utf-8-*-MyList =[]i=0sum=0 whileI: Counter=input ("Please enter the number:\n") MyList+=[counter] I+=1 whileTrue:Print"""(1) Take Five numbers and (2) Take five numbers of the average (3) Exit"""Choose=input ("Please enter your choose:\n") ifChoose==1: forJinchRange (len (myList)): Sum+=Mylist[j]Printsumelifchoose==2:
:") ifos.path.exists (fname):Print "The name is already exists!" Else: Break All=[] Print"\ n-Enter lines ('. ' by itself to quit) \ n" whileTrue:entry=raw_input (">") ifEntry = ='.': Break Else: All.append (entry) Fobj=open (fname,'W') Fobj.writelines (['%s%s'% (X,ls) forXinchAll ]) Fobj.close ()Print "done!" ifchoose=='2': Print 'You choose 2'fname=raw_input ("Please choose the file:") Fobj=ope
Let's start by explaining how to use Chinese in writing Python scripts.At the beginning of the script you can add the following code snippet:# _*_ Coding:utf-8 _*_ The effect and #coding=utf-8 are the sameHere's a summary of how to pass a parameter when learning about Python's defining functions:1, the first is the location of the parameter and the default value:Defines a function func_name, where the formal parameter is ARG,ARG1,ARG2,ARG3,ARG4In thes
Here are some of the post-lesson exercises that you do when you're learning python core programming. Now paste them out to record your learning process. Brother is a mechanical background, a lot of practice topics written is very mechanical. Although the script can be written to meet the requirements of the topic, but the efficiency may not be the best, so, the younger brother or the thick skin to put them,
I will share with you the answers to my core Python programming exercise.Because it is not from official resources, it is your own exercises. It may be wrong or not the best solution. [Recommendation] blog: Python module of niubHttp://www.cnblogs.com/chu888chu888/archive/2011/01/09/1931084.html [Recommendation] recommended blog: Chapter 6 of core
-Air:desktop user$ pythonPython 2.7.11 (v2.7.11:6d1b6a68f775, Dec 5 2015, 12:54:16) [GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwinType "help", "copyright", "credits" or "license" for more information.>>> import os>>> import sys>>> import no25>>> s = "There are many books.">>> sen = no25.break_words(s)Traceback (most recent call last): File "Error 2: A typo in the calling function causes the Python hint name to be undefined.>>> no25.print_firs
46 Simple Python Exercises 1-5 questions, pythonexercises The original question and answer will be posted. The answer is not optimal, and it also reflects my learning process. If there is time, the optimized code will be updated. This is version 0.45 of a collection of simple Python exercises constructed (but in betwee
Python Exercises (v)The sum of the factorial of 1 to 5 is obtained, that is, the factorial of 1, the factorial of 2, the factorial of 3, the factorial of 4, the factorial of 5, and finally add up and sum.Factorial of 1:1*1=1Factorial of 2:1*2=2Factorial of 3:1*2*3=6Factorial of 4:1*2*3*4=24Factorial of 5:1*2*3*4*5=120The final sum should be 153Program implementation Code:n = 5sum = 1count = 0for i in range
-coordinate. Copy the previous grid values, write the code to print out the image ... Oo. Oo... Ooooooo. Ooooooo ... Ooooo ..... Ooo....... O.... Tip: You need to use loop nesting loops, print out grid[0][0], then grid[1][0], then grid[2][0], and so on, until Grid[8][0]. This completes the first line, so the next line is printed. The program will then print out grid[0][1], then grid[1][1], then grid[2][1], and so on. The program finally prints out grid[8][5]. Also, if you do not want to autom
Learning, are from the book to find some of the programming of small exercises.1, write a program, he takes the radius of the sphere (floating point) as input, and output the sphere diameter, circumference length, surface area, volume.defBall (): whileTrue:Try: P= 3.14R= Float (Input ("Please enter sphere radius:")) ifR 0:Print("the sphere radius of the input cannot be less than 0! ") Else: Print("the diameter of t
Start building with 50+ products and up to 12 months usage for Elastic Compute Service
1 on 1 presale consultation
24/7 Technical Support 6 Free Tickets per Quarter Faster Response
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.
A comprehensive suite of global cloud computing services to power your business
Payment Methods We Support
