请确保您了解您的正则表达式、流控制和缺省变量操作。
Make sure you know your regular expressions, flow control, and default variable operations.
21世纪以来，通过核心变量操作化、新变量引入和结构关系调整，模型获得了较大的扩展和完善。
Since 21 century the model had been improved greatly as the key variables being operated, new variables being input, and structure relationship being regulated.
现在您已经了解了如何使用全局变量执行简单的操作，本节将提供一些有趣的场景以展示如何使用它们。
Now that you know how to do simple operations with global variables, this section provides some interesting scenarios that show you how you can use them.
在模块的加载和卸载期间，模块子系统维护了一组简单的状态变量，用于表示模块的操作。
During module load and unload, the module subsystem maintains a simple set of state variables to indicate the operation of a module.
下一个演进是对象语言，它将状态变量结构和影响它们的操作捆绑为实体，成为类对象。
The next evolution was object languages, which bundled the state variable structures and the operations that affected them into entities called class objects.
合并操作中所有的变量都被转化成字符串，可能造成一些有趣的现象。
All variables are converted to strings during the merge operation, which can create some interesting situations.
因此，你可以平滑地由CSS迁移到LESS，如果你只是对使用变量或者操作感兴趣的话，你不需要学习一整门全新的语言。
Thus, you can gradually move your CSS to LESS, or if you're only interesting in using variables, or operations, you aren't forced to learning a whole new language.
要确定使用的是哪种操作系统风格，可以检查系统变量PATH。
To determine which flavor of operating system is in use, the system PATH variable is inspected.
使用WSDL编辑器在源视图中打开 WSDL文件，并检查与您的流程输入消息或变量关联的操作。
Open the WSDL file with the WSDL Editor in the source view, and check for the operation associated with your process input message or variable.
在表面之下，原子变量的操作会变为平台提供的用于并发访问的硬件原语，比如比较并交换。
Under the hood, operations on atomic variables get turned into the hardware primitives that the platform provides for concurrent access, such as compare-and-swap.
通过确定处理业务操作的功能返回的变量，也可以标识功能。
By identifying the variables returned by the functions processing the business operations, you can also identify the functions.
该行为与操作及已创建的输入/输出变量相关联。
The activities are associated with operations and input/output variables have been created.
首先，了解什么是全局变量以及它涉及的基本操作。
First, learn what global variables are and the basic operations that can be performed with them.
一个操作规则，它为内部变量创建新的业务对象，并向它们赋予某些值。
An action rule that creates new business objects for the internal variables and assigns some values to them.
GCC定义各种环境变量来定制其操作。
GCC defines a variety of environment variables to customize its operation.
随后，它的值会设置为一个顺序号，它是由使用变量分配操作的通用代码所返回的。
Subsequently, its value is set to an order number returned by a custom code action by using a variable assignment action.
现在我们需要创建转换上的操作，并使用这些变量。
Now we need to create the actions on our transitions and make use of those variables.
还确定了需要在事件之间记住的一系列变量，从而支持执行相关操作。
You also compiled a list of variables to remember between events to take related actions.
像对变量的读写这样的操作，在线程中是根据所谓的“程序顺序”——程序的语义声明它们应当发生的顺序——排序的。
Actions, such as reads and writes of variables, are ordered within a thread according to what is called the "program order" — the order in which the semantics of the program say they should occur.
另外，对一个没有初始化的变量进行递增操作要比初始化过的来得慢。
In addition, incrementing an uninitialized variable is much slower than if it was initialized.
可以在处理流中使用XML映射来转换和操作变量。
You can also use an XML map within a process flow to convert and manipulate variables.
后一组定义在变量名和替换操作符之间包含一个冒号(：)，这会额外检查变量是否是NULL。
The last set includes a colon (:) between the variable name and the substitution operator, which adds the check to see if the variable is NULL, as well.
创建一个变量，指向要遍历的数组或集合，然后对定义的变量进行操作。
The long and the short of it is that you create a variable, indicate the array or collection to iterate over, and then operate upon the variable you defined.
然后xml库中的其它标记可以使用这一变量来运行其它操作。
This variable can then be used by the other tags in the XML library to perform additional operations.
但是，它的功能非常象Makefile功能，对变量的复杂操作是很难处理的。
Its functionality, however, is a lot like the Makefile functionality in that complex operations on variables are hard to do.
其余的变量定义支持Notes文档操作和一般字符串变量。
The rest of the variable definitions are in support of Notes document operations and general string variables.
promise变量用来表示某些异步操作的结果。
A promise is a variable that represents the outcome of some asynchronous operation.
在对变量执行创建或删除操作时生成objmaint审计记录。
OBJMAINT audit records are generated when a variable is CREATEd or dropped.
另外，通过单击变量可以找到与该变量关联的操作，并且在Properties面板的Details选项卡上可以看到所选的操作。
Alternatively, you can find the operation associated with your variable by clicking on the variable, and in the Properties panel's Details TAB you can see the selected operation.
另外，通过单击变量可以找到与该变量关联的操作，并且在Properties面板的Details选项卡上可以看到所选的操作。
Alternatively, you can find the operation associated with your variable by clicking on the variable, and in the Properties panel's Details TAB you can see the selected operation.
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