结构体struct

struct Point {
    x int
    y int 
} 

p := Point{
    x: 10 
    y: 20 
} 
println(p.x) // Struct fields are accessed using a dot 

结构在堆栈上分配。要在堆上分配结构并获取指向它的指针，请使用 ＆ 前缀：

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

V没有子类，但它支持嵌入式结构：
在struct中嵌入一层struct

// TODO: this will be implemented later in July
struct Button {
    Widget
    title string
}

button := new_button('Click me')
button.set_pos(x, y)

// Without embedding we'd have to do
button.widget.set_pos(x,y)