Compilation - Converting Source Code to Bytecode

C# Tutorials - Herong's Tutorial Examples

∟Compilation - Converting Source Code to Bytecode

This section provides a tutorial example on how to compile a C# source code into a .NET Intermediate Language bytecode using the .NET C# compiler.

Let's review the C# compilation step with a simple C# source code.

1. Enter the following source code in Notepad and save it file called, HelloCLR.cs:

// HelloCLR.cs
// Copyright (c) 2010 HerongYang.com. All Rights Reserved.
using System;
class HelloCLR {
   public static void Main() {
      Console.WriteLine("Hello CLR {0}!",
         Environment.Version.ToString());
   }
}

2. Compile the source code stored in HelloCLR.cs using the .NET Framework 4 C# compiler in command window:

C:\herong>\Windows\Microsoft.NET\Framework\v4.0.30319\csc HelloCLR.cs
Microsoft (R) Visual C# Compiler version 4.6.1055.0
for C# 5
Copyright (C) Microsoft Corporation. All rights reserved.

C:\herong>dir HelloCLR.*
     237 HelloCLR.cs
   3,584 HelloCLR.exe

The output of the "csc" command is the bytecode of the program in Intermediate Language stored in file, HelloCLR.exe, in the PE (Portable Executable) format.

When HelloCLR.exe is entered from a command line, Windows will invoke .NET CLR (Command Language Runtime) perform the execution step:

C:\herong>HelloCLR.exe

Hello CLR 4.0.30319.42000!

The CLR version number returned in the output shows that the program is executed in the .NET CLR virtual machine.

Table of Contents

About This Book

Introduction of C# (C Sharp)

Data Type and Variables

Logical Expressions and Conditional Statements

Arrays and Loop Statements

Data Type Features

Floating-Point Data Types

Passing Parameters to Methods

Execution Environment Class

Visual C# 2010 Express Edition

Class Features

►C# Compiler and Intermediate Language

Compiling and Running C# Programs

►Compilation - Converting Source Code to Bytecode

.NET Intermediate Language Disassembler

CLR Based PE (Portable Executable) Files

Disassembling Intermediate Language Bytecode

Assembling Intermediate Language Source Code

Compiling C# Source Code Files

MSBuild - Microsoft Build Engine

Memory Usages of Processes

Multithreading in C#

Async Feature from C# 5

System.IO.FileInfo Class

System.Diagnostics.FileVersionInfo Class

WPF - Windows Presentation Foundation

Partial Classes and Partial Methods

Archived Tutorials

References

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