在控制台应用程序中，可以使用ascii转轮，如GUI等待游标，以指示工作正在完成。一个普通的旋转器循环使用以下4个字符:'|'，'/'，'-'，'\'

还有哪些循环动画序列可以为控制台应用程序增添趣味?

新的iTunes 11有一个非常好的查看专辑歌曲列表的视图，在专辑封面的功能中为字体和背景选择颜色。有人知道算法是怎么运作的吗?

正如问题所说，我如何使用jQuery添加一个新的选项到下拉列表?

谢谢

Many posters have problems debugging their RewriteRule and RewriteCond statements within their .htaccess files. Most of these are using a shared hosting service and therefore don't have access to the root server configuration. They cannot avoid using .htaccess files for rewriting and cannot enable a RewriteLogLevel" as many respondents suggest. Also there are many .htaccess-specific pitfalls and constraints are aren't covered well. Setting up a local test LAMP stack involves too much of a learning curve for most.

所以我的问题是我们建议他们如何自己调试他们的规则。以下是我的一些建议。其他建议将不胜感激。

Understand that the mod_rewrite engine cycles through .htaccess files. The engine runs this loop: do execute server and vhost rewrites (in the Apache Virtual Host Config) find the lowest "Per Dir" .htaccess file on the file path with rewrites enabled if found(.htaccess) execute .htaccess rewrites (in the user's directory) while rewrite occurred So your rules will get executed repeatedly and if you change the URI path then it may end up executing other .htaccessfiles if they exist. So make sure that you terminate this loop, if necessary by adding extra RewriteCond to stop rules firing. Also delete any lower level .htaccess rewrite rulesets unless explicitly intent to use multi-level rulesets. Make sure that the syntax of each Regexp is correct by testing against a set of test patterns to make sure that is a valid syntax and does what you intend with a fully range of test URIs. See answer below for more details. Build up your rules incrementally in a test directory. You can make use of the "execute the deepest .htaccess file on the path feature" to set up a separate test directory (tree) and debug rulesets here without screwing up your main rules and stopping your site working. You have to add them one at a time because this is the only way to localise failures to individual rules. Use a dummy script stub to dump out server and environment variables. (See Listing 2)If your app uses, say, blog/index.php then you can copy this into test/blog/index.php and use it to test out your blog rules in the test subdirectory. You can also use environment variables to make sure that the rewrite engine in interpreting substitution strings correctly, e.g. RewriteRule ^(.*) - [E=TEST0:%{DOCUMENT_ROOT}/blog/html_cache/$1.html] and look for these REDIRECT_* variables in the phpinfo dump. BTW, I used this one and discovered on my site that I had to use %{ENV:DOCUMENT_ROOT_REAL} instead. In the case of redirector looping REDIRECT_REDIRECT_* variables list the previous pass. Etc.. Make sure that you don't get bitten by your browser caching incorrect 301 redirects. See answer below. My thanks to Ulrich Palha for this. The rewrite engine seems sensitive to cascaded rules within an .htaccess context, (that is where a RewriteRule results in a substitution and this falls though to further rules), as I found bugs with internal sub-requests (1), and incorrect PATH_INFO processing which can often be prevents by use of the [NS], [L] and [PT] flags.

还有什么评论或建议吗?

清单1——phpinfo

<?php phpinfo(INFO_ENVIRONMENT|INFO_VARIABLES);

Python可以在多个平台上工作，可以用于桌面和web应用程序，因此我得出结论，有某种方法可以将它编译成Mac、Windows和Linux的可执行文件。

问题是我不知道从哪里开始或如何写一个GUI与它，谁能在这一点上提供一些光，并指出我在正确的方向请?

我如何向用户显示等待/忙碌游标(通常是沙漏)，让他们知道程序正在做什么?

我想禁用目录浏览/画廊文件夹和所有子目录

/画廊索引/409 *父目录 * i1269372986681.jpg * i1269372986682.jpg * i1269372988680.jpg

如何在命令提示符中运行jar文件?

当工件构建为JAR时，maven范围编译和提供之间的区别是什么?如果它是WAR，我能理解-工件将包含或不包含在WEB-INF/lib中。但是对于JAR来说，这并不重要——依赖关系不包括在内。当它们的作用域被编译或提供时，它们必须在类路径上。我知道所提供的依赖关系不是可传递的——但这仅仅是一个区别吗?

我必须维护大量经典的ASP页面，其中许多页面都有表格数据，根本没有排序功能。无论原始开发人员在数据库查询中使用的顺序是什么，都将使您陷入困境。

我想给这些页面添加一些基本的排序，我用javascript在客户端完成。我已经完成了对给定列上的给定表按照给定方向进行排序的基本脚本，只要表受到我们在这里遵循的某些约定的限制，它就能很好地工作。

我想为UI做的是用插入符号(^)指明排序方向，然后。什么?是否有一个特殊的字符是与插入符号相反的?字母v不太合适。或者，是否有其他角色配对我可以使用?