# include <iostream>
# include <iomanip> //manipulator 操控者
using namespace std;
int main()
{
int a,b;
cin>>a>>b;
int c=a/b;
cout<<c<<endl;
double e=a,f=b;
double d=e/f;
cout<<setprecision(2)<<fixed<<d<<endl; //默认是6位小数
return 0;
}
原文：https://www.cnblogs.com/whcsrj/p/13387325.html