Kotlin Creating the main function

When testing the Kotlin, we need a main function entry that is the same as the Java language, so be careful how you create it.

Right-click  

Select the File type when you create a new item here.

When you click OK, you create a. kt file that basically has nothing but a package xx.
Then enter main return, the final generated main function:

Fun Main (args:array<string>) {

}

After generating the main function, we can create the class directly in the current. kt file, which is a bit different from Java, where the main function of Java is written in class, and Kotlin's main function is written in class and can only be used as a regular method to tune Use. So our normal test should say this:

Fun Main (args:array<string>) {
    var demo1 = Demo1 ()
    demo1.testfun ("content")
}

class Demo1 {
    var name:string = "" Fun

    Testfun (name:string) {
        this.name = name
        println (this.name)
    }

}