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1·Simplicity: the program can use these node tests to select a group of elements based on their common group head element or type definition rather than enumerate all concrete element names one by one.

简单性：程序可以使用这些节点测试，选择基于共同组head元素或类型定义的一组元素，而不是逐一列举所有具体的元素名。

2·When you select an environment profile, you can optionally filter the list of available profiles by providing an environment type other than all.

在选择环境概要文件时，通过提供All之外的其他环境类型，可以筛选可用概要文件列表。

3·You can get a list of all attribute validators by clicking on an attribute validator in the source code, then open the type hierarchy explorer (F4) and select the DeployAttributeValidator class.

您可以点击源代码中的属性确认器，来得到所有属性确认器的列表，然后打开类型层级结构浏览器(F4)并选择deployattributevalidator类。

4·To select an item on the menu, all you had to do was read it and type in its first letter preceded by a slash. Submenus then replaced the main menu on the top line.

为选择菜单上的某项，你只需要阅读，在斜线符号后面键入其第1个字母，然后子菜单就会取代主菜单出现在最顶行。