best way to learn angular 2

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.) to complete the exercise. 0.1 Learning GoalsStudy This example: 1) figure out what needs to be done in the book,

being, it always comes when you understand.The results you should seeThe following is the result of a conversation with python after you have guessed the result yourself:$ pythonpython 2.5.1 (r251:54863, Feb 6, 19:02:12)[GCC 4.0.1 (Apple Inc. build 5465)] on DarwinType " Help "," copyright "," credits "or" license "for more information. True true2TrueBonus points Exercise Python also has many operators similar to! = , = = . Try to list as many of the equivalent operators in Python

1. Wrap () : Wraps an HTML structure around each element that matches in the collectionSimply look at the code:Add a parcel A to the span element$ (' span '). Wrap (' Last structure, p element adds a parent div structure2. Dom wrapping Unwrap () methodTo use. Remove () to remove the parent element of the selected element is more complex at this time unwrap () can delete the parent element of the selected elementUse:Find all P elements, delete parent container div$ (' P '). Unwrap (' 3. Dom wrapp

(); } returnobj; } Public Static voidMain (string[] args) {FinalQueueTest01 myqueue =NewQUEUETEST01 (5); Myqueue.put (A); Myqueue.put ("B"); Myqueue.put (C); Myqueue.put ("D"); Myqueue.put (E); System.out.println ("The current length of the column:" +myQueue.list.size ()); Thread T1=NewThread (NewRunnable () {@Override Public voidrun () {Myqueue.put ("F"); Myqueue.put ("G"); } }, "T1"); T1.start (); Thread T2=NewThread (NewRunnable () {@Override Public voidrun () {Objec

Easy way to learn Linux OS kernel source codeFor a lot of Linux enthusiasts are interested in the kernel is not easy to swallow, the purpose of this article is to introduce a way to interpret the Linux kernel source code, rather than explain the Linux complex kernel mechanism;A The file organization of the core source program:1. Linux core source programs are usu

Programming Flash Entry Path Below I say each ask, please do not skip, no matter what means you use, must be thoroughly digested, otherwise haste makes waste.1, three kinds of layersLayers: Similar to Photoshop layers.Guide layer: Not only can guide the motion animation, but also has the reference layer the function (this function uses the person is not many).Mask layer: Where the mask layer has an image, the contents of the layer below it can be displayed, a bit like the mask map of 3DS Max.

Programming Flash Entry Path Below I say each ask, please do not skip, no matter what means you use, must eat one by one Through, otherwise haste makes waste. 1, three kinds of layers Layers: and Photoshop layer difference No, I Guide layer: Not only can guide the motion animation, but also has the reference layer function (this function uses the There are not many people.) Mask layer: Where the mask layer has an image, the contents of the layer below it can be displayed, a bit like 3DMAX of the

Topic From the title look, finally a bit into the feeling, is not it. Next Zed is going to teach us the simplest way to use a function. New Knowledge A function is a piece of code that can be run repeatedly, using functions to improve the reuse of a piece of code, reduce the amount of code, and improve efficiency.Python defines a function in a particular format, always beginning with a def, followed by a space with the name of the function, followed

are like importedIf the class is like a module, then there should also be an import-like concept. In a class, this concept is called instantiation, and when a class is instantiated, it gets the object of a class.Create a class;Class MyStuff (object):def __init__ (self):SELF.A = ' How is it? 'def apple (self):Print ("I am classy apple")b = MyStuff () #类的实例化B.apple () #调用类的方法Print b.a# properties of the printing classAnalyzing the instantiation of a class this sentence actually python has done a

This section describes the integrated operation of functions and files.were carried out separately. 1, read out all the contents of the file, 2, reset the file to the beginning of the file. 3, print a line.I made a small improvement in this section, set up a global variable, record which line should be entered at the moment, and if so, I'll add one to the number.The code section is as follows:#!/usr/bin/env python#-*-coding:utf-8-*- fromSysImportArgvs

= new Acontext (); //var user = new User () {UserID = 1, LoginName = "888888", Password = "53523113"}; //blogContext.Users.Add (user); varRR =blogcontext.savechanges (); //new Blogcontext (). SaveChanges () } }TestAfter successful operation, we compare:As you can see clearly, our settings are effective.Originally wanted to set the unique constraints here, but the middle of the implementation and I imagined not the same, there is no way