C基础的复习

#include <stdio.h>
#include<math.h>
int f(int m)
{
 static int k = 2;
 k++;
 return k+m;
}

void main()
{
    /* char ch;
 int i = 0;
 while((ch=getchar())!='e')
 {
        i++;
  printf("*");
 }
 int a[4] = {5,2,3,4};
 int *p;
 p = a;
 p+=2;
 printf("%d/n",*p);
 int *p;
 int num[5] = {10,20,21,40,50};
 p = &num[1];
 p++;
 *p=30;
 printf("%d",num[2]+*p);
 int i, j ,num = 0;
 for(i = 0;i < 4; i ++)
 {
  for(j = 0; j < 2; j++)
  {
   num+=j;
  }
 }
 printf("/nThe value of num is %d",num);
 
 int s;
 s = f(2);
 printf("%d,%d/n",s,f(s));
 double squ,power,value;
 squ = sqrt(4);
 power = pow(3,2);
 value = pow(power,squ);
 printf("%1.0f/n",value);
 int x = 3;
 do {
  printf("%d",x--);
 }while(!x);*/
 int i,j = 0;
 for(i = 1; i <=10; i++)
 {
  if(i % 5 == 0  )
  {
   break;
  }
  j+=i;
 }
 printf("%d,%d/n",i,j);
}
//1:i =1 ; j = 1
//2:i = 2; j = 3;
//3:i = 3; j = 6;
//4:i = 4 ; j = 10;