Foreword ............................... xvii Preface ................................xix Acknowledgments ..........................xxi Part I—Introduction to Game Development Chapter 1 What Does This Book Cover? ............3 How to Make a Game....
这个计算器是计算C(n,r)值的。 它能够快速计算出很大很大的n和很大的r的值。 比如 C(1000000,100)的值多少? 下面看看结果: The Value R =: 100 The Value N =: 100,000,0 The Value C(n,r) = 106,621,924,285,106,201,287,451,825,038,562,207,162,667,291,115,250,807,231,138,436,050,033,662,565, 128,461,577,0
1.--查询当天: select * from [TABLE] where DateDiff(dd,[dateadd],getdate())=0 2.--查询24小时内的: select * from [TABLE] where DateDiff(hh,[dateadd],getDate())<=24 3.--本月记录 SELECT * FROM [TABLE] WHERE datediff(month,[dateadd],getdate())=0 4.--本周记录 SELECT * F
-- 首先,以超级管理员的身份登录oracle sqlplus sys/bjsxt as sysdba --然后,解除对scott用户的锁 alter user scott account unlock; --那么这个用户名就能使用了。 --(默认全局数据库名orcl) 1、select ename, sal * 12 from emp; --计算年薪 2、select 2*3 from dual; --计算一个比较纯的数据用dual表 3、select sysdate from dual;
安装ZoneAlarm防火墙(即eTrust Personal Firewall 5.5.114官方中文版)时,所需序列号:LGYTR-G5UKR-XH8LH-ROCXC 或 LMLTK-XT5RC-XHVML-ROE4W 。 将简体中文版eTrust Personal Firewall ,变成ZoneAlarm Pro 5.5.114 官方简体中文版的方法—— 安装eTrust Personal Firewall后退出运行,然后搜索C盘及安装目录下名为 OEM1051 的文件(包括.dll)
oracl 和db2 常用语法比较: 1、取前N条记录 Oracle:Select * from TableName where rownum <= N; DB2:Select * from TableName fetch first N rows only; 2、取得系统日期 Oracle:Select sysdate from dual; DB2:Select current timestamp from sysibm.sysdummy1; 3、空值转换 Oracle:Select
'计算图幅号 Option Explicit Type ArrayData Data() As String Count As Integer End Type Public Function getSheetNumber(strLat As String, strLon As String, ScaleID As String) As String Dim strLatErr As String, strLonErr As String Dim dblLatErr As String, db