可空值类型
摘要:
[Serializable,StructLayout(LayoutKind.Sequential)] public struct Nullable where T : struct { //这两个字段标识状态 private Boolean hasValue = false;//假定null internal T value = d... 阅读全文
posted @ 2017-06-22 21:41 *Hunter 阅读(154) 评论(0) 推荐(0) 编辑