• 结构体

    结构体

    1. struct Point {
    2.     x int
    3.     y int 
    4. } 
    6. p := Point{
    7.     x: 10 
    8.     y: 20 
    9. } 
    10. println(p.x) // Struct fields are accessed using a dot

    上面的结构体都在栈上分配。如果需要在堆上分布，需要用取地址的&操作符：

    1. pointer := &Point{10, 10}  // Alternative initialization syntax for structs with 3 fields or fewer
    2. println(pointer.x) // Pointers have the same syntax for accessing fields

    V语言不支持子类继承，但是可以嵌入匿名结构体成员：

    1. // TODO: this will be implemented later in June
    2. struct Button {
    3.     Widget
    4.     title string
    5. }
    7. button := new_button('Click me')
    8. button.set_pos(x, y)
    10. // Without embedding we'd have to do
    11. button.widget.set_pos(x,y)