Redis抢红包
static void Main(string[] args) { //1. double totalAmount = 100; int num = 10; double minAmount = 0.01; RedisClient client = new RedisClient("127.0.0.1", 6379); Queue<double> qu = new Queue<double>(); Random r = new Random(); for (int i = 1; i < num; i++) { // //(总金额-(总人数-第一个人)*最小金额)/(总人数-第一个人) //安全金额 double safeAmount = (totalAmount - (num - i) * minAmount) / (num - i); double money = NextDouble(r, minAmount * 100, safeAmount * 100) / 100; money = Math.Round(money, 2, MidpointRounding.AwayFromZero); totalAmount = totalAmount - money; totalAmount = Math.Round(totalAmount, 2, MidpointRounding.AwayFromZero); qu.Enqueue(money); // Console.WriteLine("第" + i + "个红包:" + money + " 元,余额:" + totalAmount + " 元"); } // Console.WriteLine("第" + num + "个红包:" + totalAmount + " 元,余额:0 元"); client.Add<Queue<double>>("key", qu); //模拟,当点击抢 Queue<double> que = client.Get<Queue<double>>("key"); if (que.Count > 0) { double am = que.Dequeue(); var t = new { name = "123213",amount= am ,date=DateTime.Now}; } else { //没了 } //if (qu.Count > 0) //{ // Queue<double> que = client.Get<Queue<double>>("honbao"); // //出红包 // que.Dequeue(); //} //else { ////红包没了; //} Console.ReadKey(); } /// <summary> /// 生成设置范围内的Double的随机数 /// eg:_random.NextDouble(1.5, 2.5) /// </summary> /// <param name="random">Random</param> /// <param name="miniDouble">生成随机数的最大值</param> /// <param name="maxiDouble">生成随机数的最小值</param> /// <returns>当Random等于NULL的时候返回0;</returns> protected static double NextDouble(Random random, double miniDouble, double maxiDouble) { if (random != null) { return random.NextDouble() * (maxiDouble - miniDouble) + miniDouble; } else { return 0.0d; } }