Learning point C language (7): For Loop

1. Basic Form of for loop:

 
# Include <stdio. h> int main (void) {int I; for (I = 0; I
 

2. Step Size:

 
# Include <stdio. h> int main (void) {int I; for (I = 0; I
 

3. decrease:

 
# Include <stdio. h> int main (void) {int I; for (I = 10; I> 0; I --) {printf ("% d \ n", I );} getchar (); Return 0 ;}

  
 

4. Available characters:

 
# Include <stdio. h> int main (void) {char C; For (C = 'a'; c --) printf ("% C \ n", C ); getchar (); Return 0 ;}

  
 

5. decimal places available:

# Include <stdio. h> int main (void) {double F; For (F = 0.0f; f
 

6. carry other variables:

 
# Include <stdio. h> int main (void) {int I, j = 0; for (I = 0; I
 

 
# Include <stdio. h> int main (void) {int I, j = 999; for (I = 0; I
 

7. nesting:

 
# Include <stdio. h> int main (void) {int I, j; for (I = 0; I
 

8. Break:

 
# Include <stdio. h> int main (void) {int I; for (I = 0; I
 

9. Continue:

 
# Include <stdio. h> int main (void) {int I; for (I = 0; I
 

10. omitted:

 
# Include <stdio. h> int main (void) {int I = 0; For (; I
 

 
# Include <stdio. h> int main (void) {int I; for (I = 0; I ++) {if (I> 10) break; printf ("% d \ n ", i);} getchar (); Return 0 ;}

  
 

 
# Include <stdio. h> int main (void) {int I; for (I = 0; I
 

 
# Include <stdio. h> int main (void) {int num = 0; For (;) {printf ("% d \ n", num); num ++; if (Num> 10) break;} getchar (); Return 0 ;}

  
 

11. Simplify Boolean judgment

# Include <stdio. h> int main (void) {int I; for (I = 10; I> 0; I --) printf ("% d \ n", I ); /* Where I> 0 is a Boolean judgment */for (I = 10; I --) printf ("% d \ n", I ); /* Because I = 0 is false, it can be omitted; this is the same as the previous sentence */getchar (); Return 0 ;}

  
 

12. Example: the output is an integer ranging from 0 to 100, with 10 line breaks.

 
# Include <stdio. h> int main (void) {int I; for (I = 0; I