只要没有混合的类型表达式，就可以在常数说明中使用算术运算符。
You can use arithmetic operators within your constant declarations as long as there are no mixed type expressions.
二者的实现基础完全相同，即在编译时将“var”替换成为分析得到的正确的变量或数组类型表达式。
Both work fundamentally the same way, at compile time the keyword "var" is replaced with the correct scalar or array type for the associated expression.
尽管许多数据类型和基本的表达式是相同的，但是它们的用法和应用不太一样。
Although many of the data types and fundamental expressions are the same, their use and application is slightly different.
它定义了一种xml语言，可用于定义新类型的词汇表示的正则表达式。
It defines an XML language for defining regular expressions for the lexical representation of new types.
表3显示所需的列和它们相应的数据类型和路径表达式。
Table 3 shows the needed columns and their corresponding data types and path expressions.
这些类型涵盖了所有表达式。
您可以添加消息树的新数据类型或元素，以便在表达式中使用。
You have the ability to add new data types or elements of the message tree for use in the expression.
可以合理地假设，一个特定的规则可能在不同的地方以不同的格式表达，并且可以同时使用多个规则表达式类型。
It is reasonable to assume that a given rule may be expressed in multiple formats at different times, and that multiple rule expression types may be in use in parallel.
至此，您可能想知道不同数值类型在单个表达式中混合出现的时候怎么办。
By now, you're probably wondering what happens when the different numerical types are mixed in a single expression.
这会导致其他操作数也被转换成64位的类型，这样在对表达式进行赋值时就不需要再进行转换了。
This will cause the other operands to be promoted to 64-bits and no further conversion is needed when the expression is assigned.
C+ +没有提供查询变量或表达式的类型的简便方法。
C + + has never had an easy mechanism for querying the type of a variable or an expression.
在开始介绍表达式的细节之前，有必要先简单了解表达式能够计算的数据类型。
Before turning to the details of expression formation, it is useful to take a quick survey of the types of data that expressions can manipulate.
在研究数据类型时，我们已经看到了许多表达式和构造。
We've already seen a number of different expressions and constructs while looking at the different data types.
EcmaScript组件只提供核心语言功能 --原始数据类型、表达式赋值和流量控制等等。
The EcmaScript component offers only the core language features -- the primitive data types, expression evaluation, flow control, etc.
如果理解了XPath并能使用不同类型的表达式，事情就更有趣了。
Things get more interesting when you understand XPath and can use different types of expressions.
新的auto语法：根据初始化器(initializer)表达式推导类型。
Welcome to the new auto syntax: type deduction from initializer expressions.
函数类型确实是表现lambda表达式类型的一种自然方法，但遗憾的是它们无法与现有语言功能“擦除(erasure)”很好地进行交换。
Function types are indeed the natural way to represent the type of a lambda expression, but unfortunately they interact badly with an existing language "feature" : erasure.
非常明显，你的throwit函数不能把对象的动态类型传给抛出表达式。
It is clear that your throwit function cannot pass the dynamic type of the object to the throw expression.
CriteriaQuery通过类型连接表达式连接两个实体。
CriteriaQuery expresses joining two entities by typed join expressions.
这次我还是要创建一个新的filter类型，向正则表达式传递一个名为rfilter的闭包，并执行一些assert，以确保每件事都正常。
Again, I'll create a new filter type, pass in the regular expression closure named rfilter and execute some asserts to ensure that everything is peachy. All of this is shown in Listing 3.
编绎器确保XPath表达式的结果满足此类型。
The compiler ensures that the result of the XPath expression satisfies this type.
使用基于olap或dmr的包时，如果报告包含比较不同数据类型的值的表达式，那么以dynamicQueryMode执行报告将生成以下错误消息。
When using OLAP or DMR-based packages, reports with expressions that compare values with different data types will produce the following error in Dynamic Query mode.
由JeremyManson提交，该建议提出增加对类实例创建表达式的有限类型推断。
Submitted by Jeremy Manson, this proposal addresses the addition of limited type inference for class instance creation expressions. For example instead of writing.
CriteriaQuery在运行时被构建为一个强类型查询表达式树，本文通过一系列例子展示了它的用法。
A CriteriaQuery is constructed at run time as a tree of strongly typed query expressions whose use the article has illustrated with a series of code examples.
另一种过滤器类型基于Xpath表达式。
比较表达式中的不同数据类型。
该参数告诉 XPath引擎期望表达式返回什么类型的值。
This argument indicates to the XPath engine what type to expect as the expression's return value. The XPathConstants class defines several possible values
既然Duby可以方便地将不明类型或动态类型的表达式看做是需要动态调用的，那么没理由不把Surinx吸收为Duby的特性之一。
And since Duby could easily treat untyped or dynamic-typed expressions as requiring dynamic invocation, there's no reason Surinx shouldn't just be assimilated as a feature of Duby.
NODESET用于返回节点集数据类型的表达式(映射到dom or g . w3c . dom .NodeList数据类型)。
XPathConstants.NODESET for expressions that return Boolean data types (maps to the dom org.w3c.dom.NodeList data type).
XPath表达式使用动态定类型(在对表达式或变量求值之前，不必知道表达式或变量的类型)。
XPath expressions use dynamic typing (the type of an expression or of a variable is not necessarily known until the expression or variable is evaluated).
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