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# โครงสร้างควบคุมการทำงานแบบควบคุมการทำงาน

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### โครงสร้างควบคุมการทำงานแบบควบคุมการทำงาน

1. 1. ( if , if-else, if-else-if, switch..case)
2. 2. 1. if • if if (condition) { statement1; statement2; . . statement n; }
3. 3. int a,b,c; a =2; b = 5 ; c=a*b; If (c>=10) printf(“hello”);
4. 4. 2. if-else • if-else 2 if-else if if if else
5. 5. if –else If (condition) statement 1; else statement 2; If (condition) { statement 1; Statement2; } else { statement 3; Statement4; }
6. 6. int a,b,c; scanf(“%d”,a); scanf(“%d”,b); c= a+b; If (c>=10) printf(“hello”); else print(“Bye”)
7. 7. 3 if...else if • 2 ( ) if (condition) statement 1; else if(condition) statement2; else if(condition) statement-3; else statement 4;
8. 8. int s; printf(“Enter your score”); scanf(“%d”,&s); If(s>90) printf(“A”); else if(s>=80) printf(“B”); else if(s>=70) printf(“C”); else printf(“D”);
9. 9. switch…case •
10. 10. Switch(variable) { case constant1 : statement 1; break; case constant 2: statement 2; break; case constant 3: statement3; break; default : statement4; }
11. 11. • variable int char • constant int char constant variable variable = constant case case • break ; case • default : switch …case variable constant case default
12. 12. switch…case Int a; Scanf(“%d”,&a); Switch(a) { case 0: printf(“zero”); break; case1 :printf(“red”); break; case2 : printf(“blue”); break; case3 : printf(“green”); break; case4 : printf(“yellow”); break; default : printf(“ Other case”); break; }