1234567891011121314151617181920Point { x int y int}main() { a := Point{x: 1, y: 2} b := a assert a.x == b.x assert a.y == b.y a.x = 3 a.y = 4 assert a.x != b.x assert a.y != b.y a = b assert a.x == b.x assert a.y == b.y}
