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centos执行yum出现Could not retrieve mirrorlist错误
具体错误见截图刚开始以为是DNS配置错误,经检查发现DNS与物理机的DNS配置是一样的,物理机可以解析DNS搜索资料发现是/etc/nsswitch.conf这个文件的问题这个文件hosts标签设置的是host:fileshost:files表示只用/etc/hosts文件解析主机修改成hosts:...
分类:其他好文   时间:2014-11-05 14:25:40    阅读次数:177
PB+MS SQL+触发器必须注意
PB+MS SQL+触发器必须注意: 若触发器存在两笔以上的返回值,比如两条update 语句,被误判为数据有改变,存盘不成功。 提示: Row changed between retrieve and update. No changes made to database. 所以MS SQL 触发器必须统一处理为: 触发器开始加: if@@ROWCOUNT=0 Return --提高效能 setnocount on --不返回统计笔数,可减少网络频繁响应,提高效性能;避免误判为数...
分类:数据库   时间:2014-10-29 19:27:33    阅读次数:210
Can a windows dll retrieve its own filename?
http://stackoverflow.com/questions/2043/can-a-windows-dll-retrieve-its-own-filenameA windows exe file has access to the command string which invoked i...
分类:Windows程序   时间:2014-10-28 15:08:24    阅读次数:242
将图片以二进制的方式保存在数据库中,并显示图片
http://www.aspnettutorials.com/tutorials/database/store-img-bins-asp4-cs/http://stackoverflow.com/questions/18998763/how-to-retrieve-binary-image-from...
分类:数据库   时间:2014-10-27 14:15:27    阅读次数:145
(三)underscore.js框架Objects类API学习
keys_.keys(object)  Retrieve all the names of the object's properties. _.keys({one: 1, two: 2, three: 3}); => ["one", "two", "three"] values_.values(object)  Return all of the values of the obje...
分类:Windows程序   时间:2014-10-26 17:00:33    阅读次数:333
CentOS----使用yum命令出现“could not retrieve mirrorlist http://mirrorlist.centos.org ***” - ybq155”
无聊安装了个mini版的32位的CentOS 6.5,进来想安装个东西,yum install emacs提示什么Loaded plugins: fastestmirror, refresh-packagekit, securityLoading mirror speeds from cached ...
分类:Web程序   时间:2014-10-25 17:14:56    阅读次数:178
Why should i use url.openStream instead of of url.getContent?
I would like to retrieve the content of a url. Similar to pythons:html_content = urllib.urlopen("http://www.test.com/test.html").read()In examples(jav...
分类:Web程序   时间:2014-10-18 15:21:48    阅读次数:232
Get skincluster data with maya’s python API
The code below demonstrates, via maya’s python api, how to retrieve:– mObject from a mesh, and its skincluster– MFnSkinCluster for the skincluster on ...
分类:编程语言   时间:2014-10-14 02:35:37    阅读次数:385
yum cannot retrieve metalink for repository
Error: Cannot retrieve metalink for repository: epel. Please verify its path and try again兄弟Ruiy哥的解决方案是从OS一样的系统scp /e tc/yum.repo.d/下的所有repo到本机的这个地方就O...
分类:其他好文   时间:2014-10-10 13:12:44    阅读次数:173
android system service 系统服务列表
1 public abstract Object getSystemService(String name); 2 3 /** 4 * Use with {@link #getSystemService} to retrieve a 5 * {@li...
分类:移动开发   时间:2014-10-09 15:12:23    阅读次数:672
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