/// 適配IPhoneX 用到的屬性
var IS_IphoneX : Bool {
    get{
       return UIScreen.instancesRespond(to: #selector(getter: UIScreen.main.currentMode)) ? __CGSizeEqualToSize(CGSize(width: 1125, height: 2436), (UIScreen.main.currentMode?.size)!) : false
    }

}
/// 底部安全距離
var KBottomSafeHeight : CGFloat {
    get
 
 {
        if #available(iOS 11.0, *){
            return (UIApplication.shared.delegate?.window??.safeAreaInsets.bottom)!
        }else{
            return 0.0
        }
    }
}

/// TabBar大小
var KTabBarHeight : CGFloat {
    get{
        return UIApplication.shared.statusBarFrame.size.height > 20 ? 83
 
 : 49
    }
}
/// 導航高度
var KNavBarHeight : CGFloat {
    get{
        return 44 + UIApplication.shared.statusBarFrame.size.height
    }
}
/// 狀態列的高度
var KStatusBarHeight: CGFloat {
    get{
        return UIApplication.shared.statusBarFrame.size.height
    }
}