头文件:
函数:round()
格式:T round(T x)
#include<iostream> #include<cmath> using namespace std; int main(){ cout<<"round(1.3) = "<<round(1.3)<<endl <<"round(1.5) = "<<round(1.5)<<endl <<"round(-1.3) = "<<round(-1.3)<<endl <<"round(-1.5) = "<<round(-1.5)<<endl; return 0; }
输出:
1 2 -1 -2