今天使用数据库时(SQLite)出现了一个错误让我头疼了好半天,最后发现是自己粗心引起的,在这里把这个错误记下来,以便以后查阅以下是当时报的错误:
错误原因:是因为自己从数据库建立连接后没有将游标向下移位(使用reader.Read()方法)就开始读数据引起的,此时游标中是没有数据的,切记...
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数据库 时间：
2014-05-04 12:25:13
阅读次数：
308
1 . @asset 可以屏蔽错误 2 . isset判断是否有这样一个值3 浏览器的状态管理
（用户登录） 3.1 PHP /asp /tsp cookiel(针对客户端) 、sessiong（针对服务端）。 4 . if($row[0]) {
setcookie("mycookie"...
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Web程序 时间：
2014-05-04 12:16:52
阅读次数：
336
1.状态管理（用户登录）phpAsp===》cookie（客户端）本地JSP
session（服务器）2.setcookie("mycookie",$user,time()+1800);默认有前两个值 if($row[0]){
setcookie("mycookie",$user,time()+1....
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其他好文 时间：
2014-05-04 12:11:18
阅读次数：
383
题目描述：
Hzz loves aeroplane chess very much. The chess map contains N+1 grids labeled from 0 to N. Hzz starts at grid 0. For each step he throws a dice(a dice have six faces with equal probability to...
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其他好文 时间：
2014-05-04 09:18:42
阅读次数：
321
题目如下：
``Accordian'' Patience
You are to simulate the playing of games of ``Accordian'' patience, the rules for which are as follows:
Deal cards one by one in a row from left to right, no...
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其他好文 时间：
2014-05-04 09:08:31
阅读次数：
329
每个section的row数量(都是从0下标开始)(http://blog.csdn.net/hmt20130412/article/details/20831377)
分类：
移动开发 时间：
2014-05-04 00:29:14
阅读次数：
322
Input
t – the number of numbers in list, then t lines follow [t
Each line contains one integer: N [0 N
Output
Output given numbers in non decreasing order.
Example
Input:
5
5
3
...
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其他好文 时间：
2014-05-04 00:04:09
阅读次数：
376
You are given a string, S, and a list of words, L, that are all of the same length. Find all starting indices of substring(s) in S that is a concatenation of each word in L exactly once and without an...
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其他好文 时间：
2014-05-03 21:35:49
阅读次数：
310
Valera wanted to prepare a Codesecrof round. He's already got one problem and he wants to set a time limit (TL) on it.
Valera has written n correct solutions. For each correct solution, he knows it...
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其他好文 时间：
2014-05-03 16:53:51
阅读次数：
364
Chef wrote some text on a piece of paper and now he wants to know how many holes are in the text. What is a hole? If you think of the paper as the plane and a letter as a curve on the plane, then each...
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其他好文 时间：
2014-05-03 15:49:18
阅读次数：
412
