#include <stdio.h>

void main() { int counter;

printf("\nEven values\n"); for (counter = 0; counter <= 100; counter++) { if (counter % 2 ==0) /* Even */ continue;

printf("%d ", counter); }

printf("\nOdd values\n"); counter = 0; while (counter <= 100) { counter++;

if (counter%2==1) /* Odd */ continue;

printf("%d ", counter); } }

#include &lt;stdio.h&gt;
void main()
{
 int counter;
 printf("\nEven values\n");
 for (counter = 1; counter &lt;= 100; counter++)
 {
  if (counter % 2 ==0)  /*  Even */
   printf("%d ", counter);
  
 }
 printf("\nOdd values\n");
 counter = 0;
 while (counter &lt;= 100)
 {
   if (counter%2==1) /*  Odd  */
    printf("%d ", counter);
   counter++;
 }
}
你的原因主要是continue，他是跳过本次循环，进行下一次判断。