struct@H_301_5@ Resolution {
var@H_301_5@ width = 0@H_301_5@
var@H_301_5@ height = 0@H_301_5@
func@H_301_5@ test(){
println("test"@H_301_5@)
}
}
//@H_301_5@所有结构体都有一个自动生成的成员逐一构造器,用于初始化新结构体实例中成员的属性
let@H_301_5@ vga = Resolution(width:640@H_301_5@,height: 480@H_301_5@)
let@H_301_5@ someResolution = Resolution()
println(vga.width)
println(someResolution.width)
someResolution.test()
//someResolution.width = 23
class@H_301_5@ VideoMode {
var@H_301_5@ resolution = Resolution()
var@H_301_5@ interlaced = false@H_301_5@
var@H_301_5@ frameRate = 0.0@H_301_5@
var@H_301_5@ name: String@H_301_5@?
}
let@H_301_5@ someVideoMode = VideoMode()
//Swift@H_301_5@ 允许直接设置结构体属性的子属性
someVideoMode.resolution.width = 12880@H_301_5@
println(someVideoMode.resolution.width)
//@H_301_5@类是引用类型,引用的是已存在的实例本身而不是其拷贝。
let@H_301_5@ hd = Resolution(width: 1920@H_301_5@,height: 1080@H_301_5@)
let@H_301_5@ tenEighty = VideoMode()
tenEighty.resolution = hd
tenEighty.interlaced = true@H_301_5@
tenEighty.name = "1080i"@H_301_5@
tenEighty.frameRate = 25.0@H_301_5@
let@H_301_5@ alsoTenEighty = tenEighty
alsoTenEighty.frameRate = 30.0@H_301_5@
if@H_301_5@ tenEighty === alsoTenEighty {
println(@H_301_5@"tenEighty 与@H_301_5@ alsoTenEighty 是等价的@H_301_5@")@H_301_5@
}