Chapter 6: Statements

1. When using the switch-case statement, note that the expression must produce a positive result and its value is compared with the value of each case.

2. variables defined in the loop condition must go through the creation and revocation processes in each loop.

3. The break statement is used to end the recent while, do-while, for, or switch statements, and pass the execution permission of the program to the statement that follows the terminated statement.

Example:

Int I = 5;

While (I)

{

Switch (I)

{

Case 1:

I --;

Break;

Case 2: // Loop

I --;

I --;

Break;

}

I --;

}

Cout <"I =" <I <Endl;

In this example, note that when I = 2, after the statement at the loop is executed, I = 0. At this time, the I --, this leads to an endless loop.