C # Assembly series 01, use NotePad to write C # And IL code, use the DOS command to compile the assembly, and run the program,

C # Assembly series 01, use NotePad to write C # And IL code, use the DOS command to compile the assembly, and run the program,

This article describes how to compile C # And IL code and use the "VS2012 developer command prompt" to compile the code into an assembly and run the program.

 

□C # compile the file as an assembly

→ Create an as folder on drive F
→ Create MyClass. cs in the as folder
→ Open and write the following code in notepad and save

using System;
public class MyClass
{
    public static void PrintSth()
    {
        Console.WriteLine("Hello");
    }
}

→ Open "VS2012 developer command prompt", enter the following command, and press ENTER

→ Run the following command to compile MyClass. cs into the MyClass. dll Assembly file, and press ENTER

View the as folder under drive F. An additional MyClass. dll assembly is added.

 

□Il file compiled into assembly

→ Create SecondClass. il in the as folder
→ Open and write the following code in notepad and save

.assembly SecondClassAssembly {}
.assembly extern mscorlib {}
.class public SecondClass extends [mscorlib]system.object{
    .method public static void PrintSth() cil managed{
        ldstr "hello from IL"
        call void [mscorlib]System.Console::WriteLine(string)
        ret
    }
}

→ Enter the following command:

→ Press enter to see the following page:

In the as folder under drive F, a SecondClassAssembly. dll assembly is added.

→ View the dll file in the as folder, enter the following command, and press ENTER

 

□Use the Assembly to run the program

→ Create MainClass. cs in the as folder
→ Open and write the following code in notepad and save

using System;
class MainClass
{
    static void Main()
    {
        MyClass.PrintSth();
    }
}

→ Open "VS2012 developer command prompt", enter the following command, and press ENTER

In the asfile folder under the fdisk, A mainclass.exe assembly is added.

→ Enter the following command and press Enter.

 

"C # Assembly series" includes:

C # Assembly series 01, use NotePad to write C # And IL code, use the DOS command to compile the assembly, and run the C # Assembly series 02 program, use NotePad to view the IL code C # Assembly series 03 of the executable assembly, reference multiple module C # Assembly series 04, understand the keyword internal C # Assembly generation 05 when the Assembly contains multiple modules, so that the Assembly contains multiple modules

 

References:

Http://www.computersciencevideos.org/created by Jamie King

 

In C language-> what?

-> Is a whole. It is used to point to a struct, class in C ++, and other pointers containing sub-data to obtain sub-data. In other words, if we define a struct in C and declare a pointer pointing to this struct, we need to use "->" to retrieve the data in the struct using the pointer ".
For example:
Struct Data
{
Int a, B, c;
};/* Define struct */
Struct Data * p;/* define struct pointer */
Struct Data A = {1, 2, 3};/* declare variable */
Int x;/* declare a variable x */
P = & A;/* point p to */
X = p-> a;/* indicates that the data item a in the struct pointed to by p is assigned to x */
/* Because p points to A, p-> a = A. a, that is, 1 */

For the first problem, p = p-> next; this should appear in the linked list of C language. next here should be a struct pointer of the same type as p, and its definition format should be:
Struct Data
{
Int;
Struct Data * next;
};/* Define struct */
............
Main ()
{
Struct Data * p;/* declare the pointer Variable p */
......
P = p-> next;/* assign the value in next to p */
}
The linked list pointer is a difficulty in C language, but it is also the key. It is very useful to learn it. To be careful, you must first talk about variables and pointers.
What is a variable? The so-called variables should not be simply thought that the amount will become a variable. Let's use the question of our Dean: "Is the classroom changing ?" Change, because there are different people in the classroom every day, but they do not change, because the classroom is always there, and it does not become larger or smaller. This is the variable: There is a constant address and a variable storage space. Under normal circumstances, we only see the variable in the room, that is, its content, but do not pay attention to the variable address, but the C language pointer is the address of the room. We declare that variables are equivalent to building a house to store things. We can directly watch things in the house, while declaring pointers is equivalent to getting a positioner. When a pointer points to a variable, it is to use the pointer to locate the variable. Then we can use the pointer to find the variable "tracked" and get the content in it.
What about struct? The structure is equivalent to a villa composed of several houses, and several houses are bound for use together. Suppose there are many such villas distributed in a big maze, and each villa has a house. The location information of another villa is put in it. Now you have found the first villa with the positioner and obtained what you want from it (the data part of the linked list ), then, calculate the location of the next villa into your positioner (p = p-> next), and go down to the next villa ...... If you go on like this, you will know that the information of a villa on the ground is gone (p-> next = NULL), and your trip is over. This is the process of traversing a linked list. Now you can understand the meaning of p = p-> next!
Write so much. I hope you can understand.
If you want to learn c and C ++ well, you must be familiar with linked lists and pointers!

In C language-> what?

-> Is a whole. It is used to point to a struct, class in C ++, and other pointers containing sub-data to obtain sub-data. In other words, if we define a struct in C and declare a pointer pointing to this struct, we need to use "->" to retrieve the data in the struct using the pointer ".
For example:
Struct Data
{
Int a, B, c;
};/* Define struct */
Struct Data * p;/* define struct pointer */
Struct Data A = {1, 2, 3};/* declare variable */
Int x;/* declare a variable x */
P = & A;/* point p to */
X = p-> a;/* indicates that the data item a in the struct pointed to by p is assigned to x */
/* Because p points to A, p-> a = A. a, that is, 1 */

For the first problem, p = p-> next; this should appear in the linked list of C language. next here should be a struct pointer of the same type as p, and its definition format should be:
Struct Data
{
Int;
Struct Data * next;
};/* Define struct */
............
Main ()
{
Struct Data * p;/* declare the pointer Variable p */
......
P = p-> next;/* assign the value in next to p */
}
The linked list pointer is a difficulty in C language, but it is also the key. It is very useful to learn it. To be careful, you must first talk about variables and pointers.
What is a variable? The so-called variables should not be simply thought that the amount will become a variable. Let's use the question of our Dean: "Is the classroom changing ?" Change, because there are different people in the classroom every day, but they do not change, because the classroom is always there, and it does not become larger or smaller. This is the variable: There is a constant address and a variable storage space. Under normal circumstances, we only see the variable in the room, that is, its content, but do not pay attention to the variable address, but the C language pointer is the address of the room. We declare that variables are equivalent to building a house to store things. We can directly watch things in the house, while declaring pointers is equivalent to getting a positioner. When a pointer points to a variable, it is to use the pointer to locate the variable. Then we can use the pointer to find the variable "tracked" and get the content in it.
What about struct? The structure is equivalent to a villa composed of several houses, and several houses are bound for use together. Suppose there are many such villas distributed in a big maze, and each villa has a house. The location information of another villa is put in it. Now you have found the first villa with the positioner and obtained what you want from it (the data part of the linked list ), then, calculate the location of the next villa into your positioner (p = p-> next), and go down to the next villa ...... If you go on like this, you will know that the information of a villa on the ground is gone (p-> next = NULL), and your trip is over. This is the process of traversing a linked list. Now you can understand the meaning of p = p-> next!
Write so much. I hope you can understand.
If you want to learn c and C ++ well, you must be familiar with linked lists and pointers!