การเขียนคำสั่งควบคุมแบบมีทางเลือก

2. 1.1 • (_ (_) • • • • $@ (Reserved Word)

3. 1.2

4. (Mathematical Operators)

5. 2.2 relational Operators

6. 2.3 Logical Operators

7. if if if

8. 8.1 if ( compound statement) expression A

9. if else . 2 A B if ( else ( 1 1 if else if els

10. Expression A if else A

11. Nested if Nested if if else if else if else else if 2 if else if if if else

12. Switch if else if 8.7 constant) switch switch case if in switch

13. expression switch constant case break; expression case case switch switch default if

14. Nested if Nested if if else if else if else else if 2 if else if if if else

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