Reading Notes. Net in-depth experience and practical needs (1)

Before:

At that time, I bought this book mainly because of. net.CodeGenerator. Just read it later. Now read it carefully.

. Net, do you know?

Sometimes I feel more impetuous, But I can withstand the loneliness. secondly, I don't know whether things besides development will bring me interest. At least I am still interested in computers, at least to the new things.

To understand what you are doing? I am engaged in. NET software development. I usually write on my resume. I have no idea how to apply for a. NET software engineer. I can't measure myself.

Any time, any place and on any device. A dream

Main Components of. NET Framework:

1. the basis and core of the entire development framework, the Common Language Runtime Library (CLR) and a set of basic class libraries (FCL ).

2. New database access technologies such as ADO. net, ASP. NET, and WInformProgramming.

3. multi-language platforms in terms of development languages.

 Steps for implementing the. NET framework2.0 architecture:

Source code-> msil (Microsoft intermediate language)-JT-> Local Code

This is run in the managed CLR environment.

. NET features: CombinedProgramming LanguageThe development process leads to the superiority of. net.

1. Interview meeting:

• Namespace: Logical group of classes. Format: company name. Project name. xx. xx. It is specified at the beginning of Project Creation.

 

• Type inference: VaR is rarely used.
• Constant: const is always static and cannot contain static
• Process control: If (59 = seconds) // sometimes it is not used to writing like this. Switch prohibits penetration.
• String common operations:

Returns the length of a string.	Str. length;
Convert string to bit code	System. Text. encoding. Default. getbytes (STR );
String Addition	Stringbuild. append ();
Truncate string	Str. substring ();
Check whether the specified location is empty	Char. iswhitespace (STRING variable, number of digits );
Punctuation Mark or not	Char. ispunctuation ('characters ');
Conversion of characters and numbers	(INT) ('中') (char) (22236)
Clear spaces before and after	Str. Trim ();
Replace string	Str. Replace ("", ");
Deletes the last character of a string.	Str. substring (0, str. Length-1 );
Splite	String [] arrstr = Str. Split (',');
Output string format	1234. tostring ("N"); C, E, F4, X, P
Special conversion	Int. parse (a). tostring ("#########");
Output 21	String STR = new string ('A', 21 );
Obtain Random Number	Random r = new random ();
Forced conversion	Int32.tryparse (); int32.parse (); Convert. toint32 ();

2. Object-oriented:

Inheritance ----- parent

Delegate ----- task book

Event-Year-end dividend

Reflection ---- resolution

 

3. tips:

The special usage of using is changeable and @

 

Common technical questions:

1. What is delegation? What is the relationship between delegation and events?

Pass the method as a parameter

Delegate void saydelegate (string name); the parameter matches the return type.

 

2. What is reflection?

 

 

Can C # be inherited from multiple classes? How to Implement Multi-student inheritance?

It cannot be inherited from multiple classes. It inherits multiple interfaces to implement multiple inheritance.

4. What is a seal?

Class that cannot be inherited. Sealed

5. What is the purpose of the using keyword?

Reference namespace, using (streamreader sr = new stringreader ())

6. # What are the purposes of warning and # error respectively?

 

7. Differences between ASP. NET web applications Programs and ASP. NET websites: