var sss: Int
get() {
return 100
}
set(value) {}
//常量属性
val z : Long
get() {
return simpleProperty * 2L
}
接口定义:
interface SimpleInf {
//与java不同,接口里面可以定义待实现的常量属性,由子类实现
val simplePr…
1)RabbitMQ启用MQTT插件
rootmq:/# rabbitmq-plugins enable rabbitmq_mqtt
Enabling plugins on node rabbitmq:
rabbitmq_mqtt
The following plugins have been configured:rabbitmq_managementrabbitmq_management_agentrabbitmq_mqttrabbitmq_web_dispatch
Ap…