开放所有函数,超时时间20秒，请使用最新版浏览器获取最好体验。
struct Resolution {
var width = 0
var height = 0
}
class VideoMode {
var resolution = Resolution()
var interlaced = false
var frameRate = 0.0
var name: String?
func description()
{
print("name:\(name) frameRate:\(frameRate)")
}
}
let mode = VideoMode()
mode.name = "1080p HD"
mode.frameRate = 30.0
mode.description()