图表中，绿条代表的是以菜单方式回答的答案的错误率(菜单组)，紫条显示的是两组以键入方式回答的答案的错误率。
On this graph, the green bars represent the questions that could be answered with menus (for the "menu" group). The purple bars show the error rate on questions that both groups had to type.
为程序提供有意义的错误信息的最简单方法是，自己创建异常类并传递给SAXException。
The easiest way to provide meaningful error information to your program is to build your own exception that you can pass to SAXException.
由于服务器管理不同类型的软件，在同一种方法下不会发挥功能，所以没有出现一种简单方法，能创造出应付各种系统的错误页面。
As servers run different types of software and do not function in the same manner, there isn't a simple method for creating custom error pages that will work with every system.
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