Primary and Secondary Beans Primary and Secondary Beans Primary is a qualifier that indicates that a bean is the primary bean to be selected in the case of multiple interface i...

Using the @Scheduled Annotation Scheduling at a Fixed Rate Scheduling with a Fixed Delay Scheduling a Cron Task Scheduling with only an Initial Delay Using the @Scheduled A...

Using the @Scheduled Annotation Scheduling at a Fixed Rate Scheduling with a Fixed Delay Scheduling a Cron Task Scheduling with only an Initial Delay Using the @Scheduled A...

Using the @Scheduled Annotation Scheduling at a Fixed Rate Scheduling with a Fixed Delay Scheduling a Cron Task Scheduling with only an Initial Delay Using the @Scheduled A...

JavaScript 模块 选择目标模块系统 在 IntelliJ IDEA 中 在 Maven 中 在 Gradle 中 @JsModule 注解 将 @JsModule 应用到包 导入更深的包层次结构 @JsNonModule 注解 备注 JavaScript 模块 Kotlin 允许你将 Kotlin 项目编译为热门模块系统的...

6.3 Kotlin的泛型特色 6.3.1 out T 与in T 6.3.2 声明处型变 6.3.3 类型投影 6.3 Kotlin的泛型特色 正如上文所讲的，在 Java 泛型里，有通配符这种东西，我们要用? extends T 指定类型参数的上限，用 ? super T 指定类型参数的下限。 而Kotlin 抛弃了这个东西，引用了生...

Interesting Functions Function Definition Currying Interesting Functions Function Definition Lambdas are clearly a simple and powerful way of defining functions. But the s...

alias alias An alias declaration inside a lib declares a C typedef : lib X alias MyInt = Int32 end Now Int32 and MyInt are interchangeable: lib X alia...

What’s New in Kotlin 1.4.0 Language features and improvements SAM conversions for Kotlin interfaces Explicit API mode for library authors Mixing named and positional arguments T...

多重声明 例子：一个函数返回俩个值 例子：多重声明和 Map 多重声明 有时候可以通过给对象插入多个成员函数做区别是很方便的，比如： val ( name , age ) = person 这种语法叫多重声明。多重声明一次创建了多个变量。我们声明了俩个新变量：name age 并且可以独立使用： println ( na...