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ภาษาซีพื้นฐาน
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ภาษาซีพื้นฐาน

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  • 1. LOGO www.themegallery.com
  • 2. (Main Menu) File Edit Search Run Compile Debug Project Option Window Help File Edit Search Run
  • 3. Debu g Proj ect Opti on Wind ow Help Project Directories Compiler
  • 4. Variable)
  • 5. Charac Inte Long Integer) Flo
  • 6. Char Unsigne dchar Int long ASCII character (128 - Float 3.4E-38 E+38 Double 1.7E-308 E+308
  • 7. C (Variable Declaration) type name; type : name : C main
  • 8. #include <stdio.h> Int main () { int num; float y; char n; printf("Enter number : ") scanf("%d",&num); printf("Enter name : "); scanf("%f",&n); printf("Thank num y n
  • 9. A-Z z Underscore) A-Z a-z - a-
  • 10. Reserved Word) aut def floa regi o ault t ster retu swit do far rn ch got sho type char o rt def uni cons enu str volat brea uct ile k whi doub case le le els signe if e d size unsig conti
  • 11. C bath_r oom n-sync 108dot s Year# _good goto -
  • 12. C (char) (string) char name [n] = "str"; nam e n str
  • 13. char name[5] = "kwan" ; name char year[5] = "2549"; char name kwan year year product_id A01
  • 14. 1. int a; int b int Com budget = 30000; int Com_budget = 35000; int _count = 451;
  • 15. void Sue's MAX_ENTRY return double printf time xyz123
  • 16. C C
  • 17. - -
  • 18. b=a++; a++ a b=a; a=a+1; a a a b=++a; a a=a+1; b=a;
  • 19. a-a b=a--; b=a; a a=a-1; -- b=--a; --a a a=a-1;
  • 20. a>b a b >== a >= b a b < b <== a<b a a <=
  • 21. x < 60 && x > 50 x x == 10 || x == 15 x
  • 22. -- -
  • 23. 1 . 5 + 2 - 3 -2 2 . 5 / 2 - 3.5 * 2 3 3 .8*1/3 4 . - 5 + 4 * (20 % 6) 5 . (-5 * (192 / 3)
  • 24. 7 .8 / 3 8 .8 % 1 9 .7 / 2 10 . 3 * 6 / 5 11 . (5 * 4 )% 3 12 . 6 * ( 9 % 4
  • 25. 1. 2+5 2.13+89 3.2*7-4 4.-34 % 5 5.3 * 7 – ( 6 * 5 / 4 ) + 6 6. x = 15, y = 23 z= 3.75 6.1 x+y/z 6.2 7/2+x 6.3 15 / 2 + 4 * 5 – z
  • 26. C printf printf int float string
  • 27. prinft printf ("format",variab format le);
  • 28. n t r f b
  • 29. d u f c
  • 30. printf printf("Hello Program C"); Hello Program C printf("Lampang kunlayanee school"); Lampang kunlayanee school printf printf("Lampang Thailand"); Lampang Thailand x printf("total value = %d",x);
  • 31. #include <stdio.h> void main() { clrscr(); prinft('Lampang Kunlayanee Schooln"); printf("Program Cn"); getch(); } Lampang Kunlayanee School Program C
  • 32. scanf() C scanf()
  • 33. scanf() scanf("format",& variable); format printf() variable
  • 34. scanf printf float score; float printf("Enter score : "); scanf("%d",&score); score
  • 35. char answer; char printf("Enter Figure (Y : N) : ") Y N scanf("%c",&answer answer
  • 36. char name[10]; printf("Enter your name = "); scanf("%s",name) name
  • 37. #include <stdio.h> void main() { clrscr(); int x,y,sum; printf("Enter The Length is : "); scanf ("%d",&x); printf("Enter The Width is : "); scanf ("%d",&y); sum = x*y; printf("The area is :%d",sum);
  • 38. 1. int m = 5,n = 8; printf("%d %dn",m%n,n%m); 1) 3) 0 1 5 3 2) 1 0 4) 3 5
  • 39. int c,k double x,y,z; x = 1.2;y = 2.1; z = 3.2; c = 3; z = x + y + z; k=z/c printf("%f %f %f %d %f",x,y,z,k,z/c); 1)
  • 40. 3. m n include <stdio.h> void main() { clrscr(); int m,n; printf("Enter 2 integers > "); scanf("%d %d",&m, &n); m = m+5; n = 3*n; printf("m = %dnn= %dn",m,n);
  • 41. 4. first,second include <stdio.h> void main() { clrscr(); int ……………… , ………... , ………………; printf("Enter ………………………… "); scanf("%d ",&………); printf("Enter ………………………… "); scanf("%d ",&………); printf("Enter third
  • 42. 5. a include <stdio.h> void main() { clrscr(); int ….. , …….; printf("Enter ………………………… "); scanf("%d ",&………); printf("Enter ………………………… "); scanf("%d ",&………); printf(“a+b,%d ",a+b); b
  • 43. 6. radius) area) circumference) area = pi * radius * radius circumference = 2 * pi * radius pi
  • 44.  F) C) C = (F-32)/1.8
  • 45.  Y X Y=
  • 46.
  • 47.  name) birth year)
  • 48. LOGO www.themegallery.com