1,将DataGridView每一行的复选框选中//DataGridView的行大于0行if (dgv_MessageList.Rows.Count > 0) { for (int i = 0; i 0) { for (int i = 0; i < dgv_MessageList.Rows.Cou....
分页程序一般由两条SQL组成:SELECT COUNT(*) FROM ... WHERE ....SELECT ... FROM ... WHERE LIMIT ... 如果使用SQL_CALC_FOUND_ROWS的话,一条SQL就可以了:SELECT SQL_CALC_FOUND_ROWS ....
分类:
数据库 时间:
2014-07-18 19:24:17
阅读次数:
292
有时候需要一个独立的块设备,loopback是个方便的选择,可通过如下方式创建dd if=/dev/zero of=./loopback_file bs=1M count=1000losetup /dev/loop0 ./loopback_file首先建立一个指定大小的文件作为实际存储的空间,然后将...
分类:
系统相关 时间:
2014-07-18 14:39:41
阅读次数:
625
Const TR_LEVEL_MARK = "+"Const TR_COL_INDEX = "A"Const TR_COL_LEVEL = "E"Const TR_COL_NAME = "C"Const TR_COL_COUNT = "D"Const TR_COL_TREE_START = "F"C...
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其他好文 时间:
2014-07-18 14:16:07
阅读次数:
414
In an attempt to remove duplicate elements from list, I go to the lengths to take advantage of methods in the java api. After investiagting the document of java api, the result is so satisfying that...
分类:
编程语言 时间:
2014-07-18 14:02:00
阅读次数:
282
官网:http://luvit.io/Luvit is an attempt to do something crazy by taking node.js' awesome architecture and dependencies and seeing how it fits in the Lu...
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其他好文 时间:
2014-07-18 10:03:40
阅读次数:
317
$ wc story.txt39 237 1901 story.txt● Use -l for only line count● Use -w for only word count● Use -c for only byte count● Use -m for character count (n...
分类:
系统相关 时间:
2014-07-18 00:22:31
阅读次数:
278
#include
#include
#include
pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;/*初始化互斥锁*/
pthread_cond_t cond = PTHREAD_COND_INITIALIZER;/*初始化条件变量*/
void *thread1(void *);
void *thread2(void *)...
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其他好文 时间:
2014-07-17 20:10:40
阅读次数:
218
public class StaticDemo {
private int count=0;
private static int staticCount=0;
public StaticDemo() {
System.out.println(++count);
System.out.println(++staticCount);
}
public static void mai...
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其他好文 时间:
2014-07-17 16:26:01
阅读次数:
184
利用TimerHandler做一个闪烁10次的效果pEntity.registerUpdateHandler(newTimerHandler(0.3f,true,newITimerCallback(){intcount=20;@OverridepublicvoidonTimePassed(TimerHandlerpTimerHandler){count--;if(count>0){pEntity.setVisible(count%2==1);}else{pEntity.unregi..
分类:
其他好文 时间:
2014-07-17 15:10:08
阅读次数:
282