Kotlin允许我创建两个main()函数.但不允许使用两个myfun()函数.
Test1.kt:
package start
fun main(args: Array<String>) {
}
fun myfun(args: Array<String>) {
}
测试2.kt:
package start
// OK!
fun main(args: Array<String>) {
}
// Error! Conflicting overloads
fun myfun(args: Array<String>) {
}
Kotlin allows to have multiple top-level main functions in the same package due to practical reasons — so that one could have an entry point in an each file without moving these files to different packages.
It is possible because each .kt file with top-level members is compiled to the corresponding class file, so these main functions do not clash, because they are located in separate class files.
为什么它允许main个功能，而不允许其他顶级功能？在同一个包中有多个具有相同名称和签名的函数，这使得从Kotlin调用时无法区分它们.这对于main函数来说不是问题，因为当它被用作程序的入口点时，需要指定它所在的类名.