我有以下代码,对此错误消息感到困惑:
实例成员"mydate"不能用于类型"TableViewController"
代码:
class TableViewController: UITableViewController {
let mydate = NSDate()
let items = [
(1, 9, 7, "A", mydate),
(2, 9, 7, "B", mydate),
(3, 9, 7, "C", mydate),
(4, 9, 7, "D", mydate)
]
当我编写以下内容时,我可以构建它,但我不知道为什么oder代码段不起作用:
class TableViewController: UITableViewController {
let mydate = NSDate()
let items = [
(1, 9, 7, "A", nil),
(2, 9, 7, "B", mydate),
(3, 9, 7, "C", mydate),
(4, 9, 7, "D", mydate)
]