full stack development tutorial

15. Movie Voting: The program gives a list of several films that are currently being released. Voted by the user for each movie.Finally, the user's voting information is published in LST = [' Beijing meets Seattle ', ' Save Mr. Wu ', ' American past ', ' the beautiful legend of Sicily ']Result: {' Beijing meets Seattle ': 99, ' Save Mr. Wu ': 80, ' The American Past ': 6, ' The Beautiful Tales of Sicily ': 23}LST = ['Beijing meets Seattle','Save Mr. Wu','The American past','the beautiful legends

8. The following variables (TU is a meta-ancestor), please implement the required functions: Tu = ("Alex", [one, three, {"K1": ' V1 ', "K2": ["Age", "name"], "K3": (11,22,33)}, 44])A. Features that tell Ganso # The ancestor is a read-only listB. Can you tell me if the first element in the TU variable, "Alex", could be modified? #不能被修改C. What is the value of "K2" in the TU variable? Is it possible to be modified? If you can, add an element, "Seven", to theThe value for "K2" is a list and the appe

) = Age (1) + 2age (1) = 40We write a recursive function, which is:def Age (N): if n = =1 :return , else: return age (n-1 ) +2Print(age (4))Analyze this recursive function in stepsdefAge (1): if1 = = 4: return40elif1 >0 and1 : returnAge (+ 2)defAge (2): if2 = = 4: return40elif2 >0 and2 : returnAge (2+1) + 2defAge (3): if3 = = 4: return40elif3 >0 and3 : returnAge (3+1) + 2defAge (4): if4 = = 4: return40elif3 >0 and3

'Execute the program tail, open a subprocess, execute the program grep, open another subprocess, two processes based on pipe ' | ' Communication, tail the result as input to grep.The state of process grep while waiting for input (i.e. I/O) is called blocking, when the grep command cannot be runIn fact, in both cases, a process cannot be logically run,1. Process hangs is its own cause, encountering I/O blocking, it will let the CPU to allow other processes to execute, so that the CPU has been wo

① in terms of parameters:Map () Function:Map () contains two parameters, the first one is a function, the second is a sequence (list or tuple). Where a function (that is, a function of the first parameter position of a map) can receive one or more parameters.Reduce () function:The first parameter of reduce () is a function, and the second is a sequence (list or tuple). However, its function must receive two parameters.② from the numerical effect on the transfer in terms of:Map () is the function

There are many kinds of computing that can be done by computers, not just subtraction, it can do many operations like our human brain.Categories: arithmetic operations, comparison operations, logical operations, assignment operations, member operations, identity operations, bitwise operations, today we understand the top four first.Arithmetic operations:A=10,b=20Assignment operation:Comparison operation:Logical operation:Python full

(name.rjust(30,‘*‘))# print(name.zfill(50)) #用0填充#captalize,swapcase,title# name=‘eGon‘# print(name.capitalize()) #首字母大写,其余部分小写# print(name.swapcase()) #大小写翻转# msg=‘egon say hi‘# print(msg.title()) #每个单词的首字母大写#在python3中num0=‘4‘num1=b‘4‘#bytesnum2=u‘4‘#unicode,python3中无需加u就是unicodenum3=‘四‘#中文数字num4=‘Ⅳ‘#罗马数字#isdigt:str,bytes,unicode# print(num0.isdigit())# print(num1.isdigit())# print(num2.isdigit())# print(num3.isdigit())# print(num4.isdigit())#isdecimal:str,unicode# num0=‘4‘# num1=b‘4‘ #bytes# n

001000000000000111110010 Python3 no need to pay attention to Python2 each file appears in Chinese, the head must be input () input ("Please enter user name:") input ("Enter password:") waits for user input until the user enters. The variable name can only be made up of: letter number underscore special case: variable names cannot start with a number. You cannot use Python's keywords as varia

outside the function are global variables, such as $x and $y.Then to use them inside the function, you must use the Global keyword to declare that these two things are global variables before they can be used, otherwise the use of the OH.This must be remembered, because it is very useful, because we often need to use global variables when writing programs with functions.Let's take another look at the code: function myTest () { static$x=0; Echo $x ; $x+ +See here we see there is a

form to define the types of inputs.Then when the user clicks the Submit button, the form submits all the contents of the form to another page.So how do you know which page to submit the form to, and note that the page is written in the form's properties.name= "Input" action= "html_form_action.php" method = "Get" >That's it, action this property is written by the user click on the Submit button, the form of the data submitted to the page, this PHP file will usually be sent over the form of dat

= None) "" "Replace" "" s = "Alex SB Alex" ret = S.replace ("Al", "BB") ("Al", "BB", from left to right first) p Rint (ret) # # #打印bbex SB Bbex Rstip (self,chars = None) "" "Split" "" s = "Alexalex" ret = S.split ("E") ("E", 1) print (ret) # # #打 Indian [' Al ', ' xal ' x '] Swapcase (self) "" "uppercase lowercase, lowercase to uppercase" "" s = Qiao print (S.swapcase ()) # # #打印qIAO Title (self) "" "Conversion title" " s =" The school "

page (bottom). mp417. Background Management Articles list page (top). mp418. Background Management Articles List page (middle). mp419. Background Management Articles List page (bottom). mp42. Installation and configuration of the environment. MP420. Background Management article Add (top). mp421. Background Management article Add (bottom). mp422. Background management post editing. mp423. Management of management in the background. MP424. Blog system before background article search. mp425. Adm

, integrated chipset-based North Bridge chip also integrates the display core.Operating system start-up process1. Computer power-On2.BIOS starts running, detects hardware: CPU, memory, hard disk, etc.3.BIOS read the parameters in the CMOS memory and select the boot device4. Read the contents of the first sector from the boot device (MBR master boot record 512 bytes, first 446 is boot information, 64 is partition information, last two is flag bit)5. Read into the bootloader boot loader module Acc

20-day Python full stack development primer to Video MasteryFree Registration Link: https://ke.qq.com/course/206831Knowledge of this course: take you to understand the opportunities and challenges that python presents to us today. A comprehensive and systematic learning of Python programming language to handle all kinds of enterpriseAll kinds of

Full-stack python development-Day6 character encoding, python-day6Full-stack python development-Day6 character encoding I. Knowledge about character encoding I. Basic computer knowledge Ii. Principle of file access in the Text Editor (nodepad ++, pycharm, word) #1. Open the

For Weber, more familiar than JS, how to apply it to all aspects, has been my consideration of a place. How to become an all-stack practitioner is a question that needs to be pondered continuously. Thanks to GitHub, let a lot of developers have a shared knowledge of the platform, thanks to angular, so that JS development web front-end spa to become easy, thanks to node, will JS fire burning to the server, b

What software does a designer with development/design/high execution skills use to help them improve their productivity? The author of this software recommendation today is an architect who likes to use self-study design skills to develop Web sites and apps to look at his toolbox. I like to define myself as a full stack engineer with some design. In some large e

10 Essential Sublime Text plug-ins for full-stack development, sublimetext Sublime Text has a beautiful user interface and powerful functions, such as code thumbnails, multiple options, and quick commands.Sublime TexT better is its scalability. Therefore, we have selected 10 essential for full-

Python full stack development "basic three" The content of this section: Functions (global and local variables) Recursive Function I. Definition and usefunction is most important to reduce the reusability of code and enhance the readability of code1 def function name (parameter): 2 3 ... 4

-like programming language [1], Big data developmentErlang = is a generic, concurrency-oriented programming language that is programmed by the Swedish telecommunications equipment manufacturer Ericsson, a functional typeThe Go ===go language is the second open source programming language released by Google 2009. The go language is optimized for programming multi-processor system applications, with go-compiled programs that are comparable to C or C + + code, and are more secure and support parall