编辑代码

#include <stdio.h>
int main () {
   int n;
   printf("");
   scanf("%d",&n);
   if(n==1){
       printf("1");
   }if(n==2){
       printf("2");
   }
   int sum1=1;
   int sum2=1;
   int sum3;
   int cnt=2;
   printf("1,1,");
   while(cnt<n){
       cnt++;
       sum3=sum1+sum2;
       printf("%d,",sum3);
       sum1=sum2;
       sum2=sum3;
   }
    return 0;
}