这是因为实际的源代码和变量绑定可以更改，这是建立在环境或者构建宏预处理程序指令的时间定义的基础上的。
This is because the actual source code and the variable binding can change, based on the environment or the build time definitions of macros and preprocessor commands.
需要设置变量是因为(可能在命名模板中)使用了一系列“编程”指令来设置它的值。
You needed to set the variable because you used a sequence of "programming" instructions, possibly in a named template, to set its value.
这个语言指令告诉计算机：在内存中，为那个被程序员命名为X的变量寻找一个地址，并把数值2存储进去。
The language instruction tells the computer to find a place in its memory, which the programmer wants to call X and to put 2 in there.
在指令序列中使用仅引用一次的局部变量。
Using a local variable declared inside a sequence of instructions that is referenced only once.
variable指定将要接收生产指令的变量的名称。
Variable specifies the name of the variable that will receive the production order.
例如，您可以使用一个变量来保存一个生产指令中的产品清单。
For example, you can use a variable to hold the list of items included in a production order. I use the following variables for implementing the merged production workflow.
您可以在Schematron 中使用let指令为变量赋值。
You can assign a value to the variables in Schematron using the let instruction.
如果Parse：RecDescent的伪指令中指定的变量非零，则该伪指令会拒绝该规则。
The directive to Parse: : RecDescent will reject a rule if the variable named in the directive is non-zero.
还演示了将变量解析器指令用于DelegatingVariableResolver和el表达式，以使用容器提供的managecustomer托管bean。
It also demonstrates the use of the variable-resolver directive for DelegatingVariableResolver and an el expression to apply the ManageCustomer managed bean instance provided by the container.
skip变量设置为' '(空字符串)，所以所有输入(包括空格)都转至标志伪指令。
The skip variable was set to "(empty string), so all input, including Spaces, goes to the token directive."
最通常的分析是数据依存性分析，它用来确定指令使用的变量(寄存器或内存位置)是否被另一条指令修改。
The most common analysis is data dependence analysis, which is to determine the instructions that use the variable (register or memory location) modified by another instruction.
可以看到test1()中每次加法都需要读取和存储全局变量errs，而在test2()中，localerrs分配在寄存器上，只需要一条指令。
Note that test1 must load and store the global errs value each time it is incremented, whereas test2 stores localerrs in a register and needs only a single instruction.
添加要求在指令指针前存在构造函数的变量。
Adding variables that require a constructor at a point before the instruction pointer.
可以将XML处理指令文本分配给一个变量，也可以将它包含在XML文档文本中。
You can assign an XML processing instruction literal to a variable or include it in an XML document literal.
在研究对象划分策略时，不仅考虑了全局变量、局部变量、栈等前人已经关注的因素，更通过粒度划分，将函数划分为指令块。
It takes following items into consideration, global variable, local variable, stack, furthermore, by the concept of granularity division, it divides function into instruction blocks.
即，不应将变量名传递到预处理器指令，并且只能用预处理器指令计算符号。
That is, a variable name should not be passed to a preprocessor directive and a symbol can only be evaluated by a preprocessor directive.
该指令指定一个值给一个局部变量，但值不读或后续指令使用。
This instruction assigns a value to a local variable, but the value is not read or used in any subsequent instruction.
该指令指定一个值给一个局部变量，但值不读或后续指令使用。
This instruction assigns a value to a local variable, but the value is not read or used in any subsequent instruction.
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