函数：XPath处理程序在计算表达式时将值和函数联系起来。
Functions: the XPath processor associates values to functions when evaluating the expression.
sys是一个标准模块，它包含有用的值和函数，还有其他许多标准模块可供使用。
Sys is a standard module that contains useful values and functions; many other standard modules exist for you to use.
还可以使用其他日期和时间函数来获得当前值，而且也不需要提供输入。
You can also use the other date and time functions with no inputs to obtain the current values.
消息是参数的集合，这些参数用作确定函数调用的输入和输出值的配置文件。
Messages are collections of parameters used as profiles in determining the input and output values for a function call.
例如，必须用参数形式包括进类型信息，必须用函数形式返回值和所有变量的类型。
For example, you must include type information with arguments, return values with functions, and types for all variables.
这个路由机制支持可选和必选参数、默认值、嵌套路由以及回调函数。
This routing mechanism supports (among other things) optional and mandatory parameters, default values, nested routes, and callback functions.
此函数接受两个参数：表的名称以及字段名和值的关联数组。
The function takes two arguments: the name of the table and an associative array of field names and values.
表达式由数据结构、绑定的变量（即具有值的变量）、数学操作符和函数调用组成。
The expression is composed of data structures, bound variables (that is, those with a value), mathematical operations and function calls.
这些函数从表列获得xml元素的名称和值。
These functions derive both the names and values of the XML elements from the columns of the table.
您可以通过使用printf调用和strerror函数(该函数返回当前errno值的文字表示形式的指针)来模拟此程序。
You can simulate this yourself by using a printf call and the strerror function, which returns a pointer to the textual representation of the current errno value.
对于每条诊断记录，SQLGetDiagRec函数调用将检索s QL state值、诊断消息和本地错误代码。
For each diagnostic record, a SQLGetDiagRec function call retrieves SQLSTATE values, diagnostic messages, and native error codes.
本文仅仅描述了Vimscript的基本变量、值、表达式和函数。
This article has described only Vimscript's basic variables, values, expressions, and functions.
前置条件和后置条件方法可以看到作为函数参数 （args）传递的值。
The pre-condition and post-condition methods can also see the values passed as function arguments (args).
这个helper函数为每个属性/值对创建了标签、输入字段和Set按钮。
This helper function creates the label, the input field, and the Set button for each property/action pair.
setenv函数将变量名和值添加到环境中，如果那个名称并不存在。
The setenv function adds the variable name to the environment with the value if the name does not already exist.
您也可以将函数的返回值和test或while之类的命令结合使用来控制分支和循环。
You might also use return values from functions with command such as test or while to control branching or looping.
保持Boolean函数true和false为booleans值，不让它们被意外地转换成字符串，是很困难的。
Keeping the Boolean functions true and false as Booleans without having them unintentionally converted to strings is difficult.
这个函数接受两个64位输入值，名为val1和val2。
The function receives two 64-bit input values, called val1 and val2.
传入onClickListener的函数收到用户输入的度量单位和值。
The function passed in to onClickListener retrieves the units of measurement and the value entered by the user.
这些变量分别具有red、green和blue值，它们将在函数中用到。
These variables hold the red, green, and blue values, respectively, that you will use in your function.
XML函数extractvalue()和extractxmlclobvalue()返回 XML节点的值。
The XML functions extractvalue() and extractxmlclobvalue() return the value of the XML node.
mapper函数提取出每行中的IP地址并返回它和值1。
The mapper function effectively strips the IP address out of each line and returns it with a value of 1.
再次利用agent函数包装droid和history的初始值。
Once again you start off by wrapping the initial values of droid and history by using the agent function.
这些函数要么在返回值和参数上缺乏一致性，要么隐含着所谓的“截断误差”(truncation errors)错误，要么无法提供足够强大的功能。
The current functions have inconsistent return values and parameters, truncation errors, and lack advanced functionality.
然后提取已变更的属性的名称和新的值，并将它们传递给一个函数，该函数通过反射对值进行设置(见清单7)。
We then extract the name of the changed property, the new value, and pass that into a function that sets the value through reflection (see listing 7).
正如你所看到的，对屏幕的调用和对一般函数的调用类似，事实上，和函数一样，屏幕也能够返回值。
As you can see, a screen is called similarly to a regular function, in fact, screens, like functions, can return values.
一个需要得到最大值的函数，和一个需要遵守的约束条件。
So I've got a function to maximize and a constraint that must be obeyed.
您可以选择使用一个WSDL文件告诉客户端关于可用函数的信息，以及输入参数和返回值的个数和数据类型。
You can use an optional WSDL file to give clients information on the available methods, as well as the number and data types of input arguments and return values.
这些特性包括枚举支持、空间数据类型、自动编译LINQ查询、表值函数和多结果存储过程。
These include Enum support, Spatial data types, auto-compiled LINQ queries, Table-Valued functions, and stored procedures with multiple results.
到目前为止，该系列文章一直关注单个标量函数(数值、字符串和布尔值)的使用。
So far in this series of articles, we've been restricted to the use of single scalar values (Numbers, strings, and booleans).
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