C # getting started with classic notes _ Ch04 Process Control

Chapter 04

4.1

1. var1 = var2 ^ var3;

2 .&

The results are the same,

4.1.1

1. processing is a series of bits stored in the variable, rather than the value of the variable.

&

<// Var1 = var2 <var3

>>// Var1 = var2 <var3

This number is multiplied by the number of shifts to the left.

 

Notice

In most codes, these operators are not used. They are mainly highly optimized code and cannot use other mathematical operations in the code. Therefore, they are usually used for device drivers or system code.

4.1.2

& =

<=

 

4.2 goto

1. C #

Goto

Goto <labelname>;

Tag definition:

<Labelname>:

// Code

 

4.3

1. Three branch technologies: ternary operators,

4.3.1

<Test>? <ResultTrue>: <resultFalse>

4.3.2 if

4.4.3switch

1. switch

2. After executing each part of the code, another statement is required.

3. In addition

4. if multiple

Switch

{

Case <comparisonVal1>:

Case <comparisonVal2>:

<Code to execute>;

Break;

......

}

5. Each

 

4.4

4.4.1 do... while

Execute the loop code and then perform a Boolean test. If the test result is

Do

{

<Code to be looped>

} While (<test> );

 

4.4.2 while

While

While

{
<Code to be looped>
}

 

 

4.4.3

This type of loop can execute a specified number of times and maintain its own counter.

For (<initialization >;< condition >;< operation>)

{

<Code to loop>

}

 

4.4.4

Notice

Use