• 注册
  • 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)
    
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