10.13

#include <iostream>
#include <iomanip>
using namespace std;
 
int main(){
    double d=97.123456789012345;
    double dou=205.123456;
    double doub=123456.007;
    cout<<d<<endl;
    cout<<dou<<endl;
    cout<<doub<<endl;
    return 0;
}

转载于:https://www.cnblogs.com/LemonSir/p/7795395.html