HDL_ON/DAL/Mqtt/MqttClient.cs
@@ -32,18 +32,18 @@ /// </summary> static string RandomKey = ""; /// <summary> /// 随机生成字符 /// </summary> /// <returns></returns> static string GetRandomKey() { if (string.IsNullOrEmpty(RandomKey)) { //随机2位字符串 Random random = new Random(Guid.NewGuid().GetHashCode()); int num = random.Next(65, 91); RandomKey = Convert.ToChar(num).ToString(); RandomKey = Utlis.CreateRandomString(2); } return RandomKey; } /// <summary>