关于 1.0/0.0 以及 0.0/0.0 的值

#include<cstdio>#include<iostream>using namespace std;int main(){    printf("%d\n",1.0/0.0);//0    printf("%d\n",0.0/0.0);//0    printf("%lld\n",1.0/0.0);//9218868437227405312    printf("%lld\n",0.0/0.0);//-2251799813685248    printf("%lf\n",1.0/0.0);//1.#INF00    printf("%lf\n",0.0/0.0);//-1.#INF00    cout<<1.0/0.0<<endl;//inf    cout<<0.0/0.0<<endl;//nan    return 0;}