C++ 代码
#include<bits/stdc++.h>
#include<cstdio>
using namespace std;
int main(){
int x;
while(scanf("%d", &x)){
if (x == 0) return 0;
int flag = 1;
for (int i = 1; i <= x; i++){
if (flag == 1) flag = 0;
else printf(" ");
printf("%d", i);
}
printf("\n");
}
return 0;
}