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You have spent a week learning the list in the previous exercise. Now we will spend another week reading some code online. This exercise is scary, just as I threw you into deep water for a few days, so that you can read some real project code. The goal is not to let you understand the code, but to teach you the following skills:Find the
Is the title long? I am introducing you to functions. Every programmer has different opinions, but now I will only teach you the simplest usage.
Functions do three things:They name the code, just like assigning a variable name to strings and numbers.They receive parameters, just like argv in the script.Use articles 1 and 2 to implement your own mini scripts or small methods.If you use def to create a function, four functions are created and the relati
Recently viewed: stupid ways to learn python (learn python the hard way)Contents:
Translator Preface
The stupid method is more simple
Exercise 0: Preparing for work
Exercise 1: First program
Exercise 2: Annotations an
We have already learned about half of it, and the lower part is more interesting. We will learn logical judgment.
Before learning in the lower half, we should first perform a test. This test will be a bit difficult and we need to modify others' code. As a programmer, it is inevitable to modify other people's code, and these people often think that their
Now it is time to review python keywords and symbols. The following lists some important python keywords and symbols.
Based on your memory, first write down the functions of these keywords, and then go online to find out their actual usage. Some of them may be difficult to find, but you should keep trying.
Write down the cards that you mistakenly remember, and write down the cards that you do not know. Then
FalseWhat is 3 + 2? 5What is 5-7? -2Oh, that's why it's False.How about some more.Is it greater? TrueIs it greatet or equal? TrueIs it less or equal? FalseRoot @ he-desktop :~ /Mystuff #
Extra score exercise1. Add a comment to each line.# Percentage indicates the remainder.Print "Roosters", 100-25*3% 4
2. Like exercise (0), input python in Terminal, run python, and execute the above
1.Windows under Installationhttps://www.python.org/downloads/download the appropriate version for installationNote: Add the Python installation path to the path path of the system environment variable to enter Python into the python environment under the command-line window 2.Linux installation tar.bz form TAR-ZJVF Compressed package c. Enter the u
0. Origins"Learn Python the hard" Exercise 46 requires four Python package pip, distribute, Nose, Virtualenv, (original book author Special reminder: do not just D Onwload these packages and install them by hand. Instead See how other people recommend you install these packages and use them for your particular system.)
We have learned printing and mathematical computation. Next we will learn variables. in the program, variables are a name, which makes it easier for us to remember.
If you are overwhelmed by the following exercises, remember the methods we taught before and find different points. Pay attention to the details:1. Write comments for each line of code.2. Read the code
We have already learned the if, function, list, and so on. Now let's change our thinking and see if you can understand the following code?[Python]From sys import exitDef gold_room ():Print "This room is full of fold. How much do you take? "Next = raw_input ("> ")If "0" in next or "1" in next:How_much = int (next)Else:Dead ("Man, learn to type a number .")If how_m
Now we enter more variables and print them. We usually use "" to refer to strings.
Strings are quite convenient. In practice, we will learn how to create strings containing variables. There is a special way to insert a variable into a string, which is equivalent to telling Python: "Hey, this is a formatted string. Put the variable here ."
Enter the following prog
Next, we will learn the if statement and enter the following code to ensure proper running.[Python]People = 20Cats = 30Dogs = 15If people Print "Too success cats! The world is doomed! "If people> cats:Print "Not found cats! The world is saved! "If people Print "The world is drooled on! "If people> dogs:Print "The world is dry! "Dogs + = 5If people> = dogs:Print "
question No. 0001:as an independent developer of the Apple Store app, you need to engage in limited-time promotions for your appGenerate Activation Code(or coupons), how do I generate 200 activation codes (or coupons) using Python? Https://github.com/Yixiaohan/show-me-the-codeImport randomcodelength = 12codeCount = 200codeOrig = "ABCDEFGHIJKLMNOPQRST1234567890" def Makepromotecode (count): For I In range (c
Next we start to learn about "functions." The function can do the following 3 things.
1, they name the code snippet, just like "variable" to string and to name
2, they can accept the parameters, just like your script accepts argv.
3, using # and #, they let you create "mini script" or "small command"
First, put the code: (slightly modified with the
Ref: http://net.tutsplus.com/tutorials/the-best-way-to-learn-python/ postMark Dunne
Python is more popular than ever, and is being used everywhere from back-endWeb servers, to front-end game development, and everything in. python is a true general purpose language and is qu
) returns an int of type 4). Input () handles what you enter as Python code, which can be a security issue. Unless there is a special need for input (), it is generally recommended to use raw_input () to interact with the user. Note: Python3 input () receives the STR type by default. x = Int (raw_input ()) Converts the user input string int () to an integer raw_input () in parentheses to enclose the hint me
makes it easy to get started. How to learn the Python language, I read a book (accurately translated a book), followed by a large number of project contacts. In the past two years, we should have used Python for almost ten projects. although not many projects have been made at the end, each project has a clear goal, such as learning a Web framework. Therefore, w
Php Chinese network (www.php.cn) provides the most comprehensive basic tutorial on programming technology, introducing HTML, CSS, Javascript, Python, Java, Ruby, C, PHP, basic knowledge of MySQL and other programming languages. At the same time, this site also provides a large number of online instances, through which you can better learn programming... Reply: The best time to do one thing is 10 years ago,
. Therefore, in every day to do the project at the same time, must ensure that a certain amount of time, bad to fill the theoretical knowledge. This part of the book in the watercress and know that there are a lot of summary, you can search by themselves.2) Don't be too tangled up with meaningless questions, such as what frames are good, XX language is better than XX language. Pre-determined the practiced hand project, to concentrate on the accumulation of c
hand and make sense of why.2. To find a practical project practiced hand. The best thing is to have a real project to do. Can find a few classmates together to make a website and so on. Note that real projects are not necessarily commercial projects.3. It's a good idea to find someone who already has python. Ask him a little bit about the idea of learning to plan (it's also a way), and then find him in a j
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