C language tutorial – -6 loop statement

c Language introduction tutorial –-6 Loop statement

c The language provides the following types of loops . while loop for loop do…while loop

while loop

#include <stdio.h>
int main ()
{
   
   /*  Definition of local variables  */
   int a = 10;

   /* while  Loop execution  */
   while( a < 20 )
   {
   
      printf("a  Value ： %d\n", a);
      a++;
   }
 
   return 0;
}

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for loop

#include <stdio.h> 
int main () 
{
    
/* for  Loop execution  */ 
for( int a = 10; a < 20; a = a + 1 ) //for( Before circulation ; The loop condition ; After the cycle )
 {
    
printf("a  Value ： %d\n", a);
 } 
return 0; 
}

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do…while loop

#include <stdio.h>
 
int main ()
{
   
   /*  Definition of local variables  */
   int a = 10;

   /* do  Loop execution , Execute at least once before the condition is tested  */
   do
   {
   
       printf("a  Value ： %d\n", a);
       a = a + 1;
   }while( a < 20 );
 
   return 0;
}

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It's circular up there 3 An example , I think the second one is the most used one for, So understand first for How to write , The lines . Write more by yourself .

Loop and conditional statements , Can make it up , Most of the code can be written .

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