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sas宏(1)、系统宏变量、自定义宏变量、输出宏值、大量实用宏函数、宏与text结合
SAS macro variablesenable you to substitute text in your SAS programs(替代作用,和c++的 #define 差不多)When you reference a macro variable in a SAS program, SAS...
分类:其他好文   时间:2014-11-13 15:55:51    阅读次数:2324
POJ3176——Cow Bowling(动态规划)
Cow BowlingDescriptionThe cows don't use actual bowling balls when they go bowling. They each take a number (in the range 0..99), though, and line up ...
分类:其他好文   时间:2014-11-13 14:33:03    阅读次数:270
【sicily系列】1325 digit generator
DescriptionFor a positive integer N , the digit-sum of N is defined as the sum of N itself and its digits. When M is the digitsum of N , we call N a g...
分类:其他好文   时间:2014-11-13 12:48:57    阅读次数:172
使用 AFNetworking的时候,如何管理 session ID
问: As the title implies, I am using AFNetworking in an iOS project in which the application talks to a server. When the user signs in, the server responds by sending back a success flag and the res...
分类:Web程序   时间:2014-11-12 23:04:36    阅读次数:278
ASI和AFN实现POST异步请求的同样功能的代码
I'm a newbie in obj-c and have been using asihttp for some of my projects. When doing a post request in asihttp its done this way. ASIFormDataRequest *request = [ASIFormDataRequest requestWithU...
分类:其他好文   时间:2014-11-12 23:03:24    阅读次数:276
如何用redis实现分布式锁
引子 redis作为一个强大的key/value数据库,其实还可以用来实现轻量级的分布式锁。 1.实现方案1 最早官方在SETNX命令页给了一个实现: acquire lock: SETNX lock.foo release lock: DEL lock.foo acquire lock when time expired: GETSET lock.foo ...
分类:其他好文   时间:2014-11-12 16:39:51    阅读次数:260
jQuery 中 attr() 和 prop() 方法的区别<转>
前几天,有人给Multiple Select 插件提了问题:setSelects doesn't work in Firefox when using jquery 1.9.0一直都在用 jQuery 1.8.3 的版本,没有尝试过 jQuery 1.9.0 的版本。于是,开始调试代码,在 1.9....
分类:Web程序   时间:2014-11-12 16:17:49    阅读次数:309
Oracle-CURSOR及EXECUTE IMMEDIATE使用
CREATE OR REPLACE PROCEDURE P_REPLACE IS v_sql VARCHAR2(2000); CURSOR cur IS SELECT * FROM user_tab_cols; tableinfo user_tab_cols%rowtype; BEGIN OPEN cur; LOOP FETCH cur INTO tableinfo; EXIT WHEN cur...
分类:数据库   时间:2014-11-12 11:52:29    阅读次数:288
Parser Error Message: Access is denied【转】
PRB: Access Denied Error When You Make Code Modifications with Index Services RunningView products that this article applies to.Article ID:329065Last ...
分类:数据库   时间:2014-11-12 07:05:01    阅读次数:326
android 创建快捷图标demo
public class DemoActivity extends Activity {     /** Called when the activity is first created. */     @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedI...
分类:移动开发   时间:2014-11-11 22:57:34    阅读次数:243
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