建立一個帶2個引數（myVar1和myVar2）的函式，它們都是字串
function myFunc(@(6): @(6), @(6): @(6)) { return(myVar1 + myVar2); }
function myFunc(myVar1: string, myVar2: string) { return(myVar1 + myVar2); }
function myFunc(myVar2: string, myVar1: string) { return(myVar1 + myVar2); }