例1-1
#include<stdio.h> int main(void) { int n; int factorial(int n); scanf("%d",&n); printf("%d ",factorial(n)); return 0; }int factorial(int n) { int i,fact=1; for(i=1;i<=n;i++) fact=fact*i; return fact; }
例1-2
#include<stdio.h> int main(void) { int a,b,c,d; a=1; b=2; c=3; d=a+b+c; printf("%d",d); return 0; }
#include<stdio.h> int main(void) { int a,b,c; a=5; b=2; c=a*b; printf("%d",c); return 0; }