#include<iostream> #include<cmath> #include<cstring> #include<ctime> #include<cstdio> #include<iomanip> #include<queue> using namespace std; int main() { double a; cin>>a; printf("%0.3f",a); return 0; }
#include<iostream> #include<cmath> #include<cstring> #include<ctime> #include<cstdio> #include<iomanip> #include<queue> using namespace std; int main() { double a; cin>>a; printf("%0.3f",a); return 0; }
原文：https://www.cnblogs.com/lipeiyi520/p/8231478.html