C#和Net框架的关系（C#图解教程第一章）

Illustrated C#  Chapter 1

 

1.Net框架：

In 2002, Microsoft released the first version of the .NET Framework, which promised to address the old

problems and meet the goals for the next-generation systems. The .NET Framework is a much more

consistent and object-oriented  environment than either the MFC or COM programming technologies. Some

of its features include the following:

• Multiple platforms: The system runs on a broad range of computers, from servers

and desktop machines to PDAs and cell phones.

• Industry standards: The system uses industry-standard communication protocols,

such as XML, HTTP, SOAP, JSON, and WSDL.

•

Security: The system can provide a much safer execution environment, even in the

presence of code obtained from suspect sources.

 

The .NET Framework consists of three components,  【Net有三部分组成：如下图1-2】

Programming Tools: 编译器 Complier

BCL：比较底层和通用的功能。System, IO,Resource,Text,Collection,

 

2.text语言到CIL的过程：

The compiler for a .NET language takes a source code file and produces an output file called an assembly 【文本代码生成程序集】.

Figure 1-3 illustrates the process.

• An assembly is either an executable or a DLL. 【可执行的或者DLL】

•The code in an assembly isn’t native machine code but an intermediate language called the Common Intermediate Language (CIL).【程序集是CIL中间语言】

• An assembly, among other things, contains the following items:

– The program’s CIL   【CIL】

– Metadata about the types used in the program 【使用的Type】

– Metadata about references to other assemblies 【reference关系】

 

 

 

3.CIL编译到Native Code的过程：

 

 

 

4.Net平台下各个语言编译和执行过程的一致性：

 

 

 

5.CLR内部的操作：

 

 

6.比较重要的缩写：

7.C#的演进