c++(生成随机数)

#include <ctime>
#include <random>

void test01()
{
	//uniform_int_distribution<unsigned> u(0,9);随机生成无符号int型0到9
	uniform_real_distribution<double> u(0, 1);//随机浮点数
	//uniform_real_distribution<> u(0, 1); 默认生成double值,取值在0到1之间
	default_random_engine e(time(0));//time头文件是ctime  e:随机数引擎对象
	
	for (size_t i = 0; i < 10; i++)
	{
		cout << u(e) << " "<<endl;
	}

}