static default_random_engine e(time(0));
static uniform_real_distribution<double> u(0, 1);
double tmp = u(e);
cout << tmp << endl;

#include<random>
#include<ctime>

int main()
{	
	for (int i = 0; i < 10; i++)
	{
		static default_random_engine e(time(0));
		static uniform_real_distribution<double> u(0, 1);//可在此处调整随机数范围
		double tmp = u(e);
		cout << tmp << endl;
	}

	system("pause");
	return 0;
}