best way to learn angular 2

of the error message into the search engine, and you can see that others have encountered such errors, and you may be able to find how to solve the problem.WarningIf you are from another country and you see an error about ASCII encoding, add this line at the top of your Python script:　# -- Coding:utf-8- -This allows you to use Unicode UTF-8 encoding in your script, and these errors will not occur.Bonus points ExerciseYou will also have a bonus point exercise to complete. The contents of the bon

;>Next we have to do an exercise, you must be very careful, I ask you to write down this exercise, and then try to understand what it does. This exercise is very interesting, you may have the feeling of being enlightened when you finish it.1Cities = {'CA':'San Francisco','MI':'Detroit',2 'FL':'Jacksonville'}3 4cities['NY'] ='New York'5cities['OR'] ='Portland'6 7 def find_city (Themap, State):8 ifState in Themap:9 return Themap

In the legend of Yi Tian's dragon slaughter, one person calls it a toggle. This person does not rely on his or her mind to do his or her work, but only on imitating others' moves, from the outside to the inside. Practice programming also has such a method, not to look at text descriptions, but to observe and imitate others' Code . In this way, you can learn programming from outside. Zed Shaw, author of the

return function, try writing a few functions yourself to get them to return some values. You can put anything that can be placed on the right side as the return value of a function. The end of the script is a puzzle. I use the return value of a function as a parameter to another function. I link them together, just like I write math equations. It may be a bit hard to read, but you'll know the result if you run it. Next, you need to try to make the same function as the expression in the nor

how big, Baidu inspects to you to have much concern. Once you have learned to give up, collect some superfluous articles every day to throw into the Web site as a façade, long past, Baidu temper one, that suffer the suffering or stationmaster himself. In that case, what should I do? It seems that there is no other way than to prepare for the ordeal. Then our work may need to start with the following: 1, daily torment to update your website, in addit

-- example demonstration ---- knowledge supplement -- Way to teach. Knowledge points will only gradually increase, a ring set a ring, to ensure that everyone can understand, not only for beginners, penetration testers can also learn from the relevant knowledge of infiltration! At the same time use python3.6 to write security tools to meet the language version of the requirements! well above is the recomm

knowledge help you with your list operations? Very simply, every time you say "I want a 3rd animal" to yourself, you need to convert the "ordinal" to "base", as long as the former minus 1 is OK. The index of the 3rd animal is 2, which is penguin. Since you've been dealing with ordinals all your life, you need to get the cardinality in this way, as long as you've lost 1.Remember: ordinal = = ordered, starti

PY walk up!!!Windows platform1. Open http://learnpythonthehardway.org/exercise0.html in your browser to download and install the Gedit text editor. This operation does not require administrator privileges.2. Put the gedit on the desktop or the Quick Launch bar so you can easily access the program. These two items can be seen in the installation options.A. To run gedit, we need to get rid of some stupid default settings first.B. Open Preferences from G

Exercise: Your first website Exercise: getting input from the browser Exercise: Create your Web game Select a project, read through its documentation and easy tutorials. During the reading process, write the code in the document yourself and let them operateYes. I learned this way, in fact, every programmer is doing so. After reading the tutorials and documentation, try writing something.Come out. Write anything, even if it is written by others can b

fin, sends an ACK to the client, confirms that the serial number is received sequence number +1, the server enters the close_wait state.Third wave: The server sends a fin to shut down the server-to-client data transfer, and the server enters the Last_ack state.Fourth wave: After the client receives fin, the client enters the TIME_WAIT state, then sends an ACK to the server to confirm that the sequence number is received sequence number +1, the server enters the close state and completes four wa

!" - Else: - Print "Well , doing%s is probably better. Bear runs away."% Bear - + elifDoor = ="2": - Print "You stare to the endless Abyss at Cthulhu ' s retina." + Print "1. Blueberries." A Print "2. Yellow jacket clothespins." at Print "3. Understanding revolvers yelling melodies." - -Insanity = Raw_input (">") - - ifInsanity = ="1" orInsanity = ="

notation reserved 2 decimal places>> 1.29e+00Formatting operator Auxiliary directivesSymbolic effect* Define width or decimal point accuracy-Used for left alignment+ Show plus sign (+) in front of positive number# 0 (' 0 ') is displayed in front of the octal number, preceded by ' 0x ' or ' 0X ' in hexadecimal (depending onUsing ' x ' or ' x ')0 The number shown is preceded by ' 0 ' instead of the default space% ' percent ' output a single '% '(VAR) m

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

honey.The fat bear is in front if another door.How are you going to move the bear?> Taunt bearThe bear has moved from the door. you can go through it now.> Taunt bearI got no idea what that means.> Open doorThis room is full of fold. How much do you take?> 4Man, learn to type a number. Good job!Root @ he-desktop :~ /Mystuff # python ex35.pyYou are in a dark room.There is a door to your right and left.Which one do you take?> LeftThere is a bear here.T

The 32-33 chapters will be for-loop and while-loop loops.The two kinds of syntax will not be said. Simply say the individual's understanding for and while.I think he learn python.First say the same point:1, can not do a single operation, For-loop if the collection is empty, the condition behind the while is false he can also do a loop operation is not done, the test method is as follows:　　 for inch []: Print " 1 " , I, 　　　 While I : Print 1

Linux so designed? Because Linux is the so-called network operating system, so a single computer is not the boundaries of Linux, if it is a system composed of multiple computers, then distributed management has a huge advantage.For example, the damage to a disk that contains a configuration file does not paralyze the entire system, but may simply invalidate some of the functionality.The problem 2:windows has a perfect graphical interface, and why Lin

find a problem with the map, adjust the map so that the code and the map match each other.One last suggestion: Every programmer will be influenced by irrational fears when they start a big new project. In order to avoid this fear, they will stall time and end up doing nothing. I sometimes do that, everyone has this experience, the best way to avoid this situation is to make a list of what you want to do, one time to complete the same.Start doing it.

feeling, learning design mode is very important. Related Knowledge points: C # oop c # Interface C # inherit C # polymorphism C # Encapsulation 2. Start learning (the second formula is used below) Examples of not wanting to use a calculator ~ Yes ~ Yes ~ Let's build blocks. I miss a game in kindergarten when I was a child ~ Component: Wood of various shapes Action: Pick up building blocks Create a console application ① Create a new wood class, the

From graduation to now also quite a long time, has been in the C # programming, but has long been engaged in business-related functions, technical aspects are not too strong, some things ambiguous grasp of the not firm, even the implementation of the way is a bit old, but it is necessary to learn again.Return, break, continue are often used in the process of business process cycle, with the following functi

Linux so designed? Because Linux is the so-called network operating system, so a single computer is not the boundaries of Linux, if it is a system composed of multiple computers, then distributed management has a huge advantage.For example, the damage to a disk that contains a configuration file does not paralyze the entire system, but may simply invalidate some of the functionality.The problem 2:windows has a perfect graphical interface, and why Lin