The syntax of the XML document allows you to define different options for each individual rule or for groups of rules while triggering the execution with a single command.

XML 文档的语法允许在使用一个命令触发执行的同时为每个规则或每组规则定义不同的选项。

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Note that each set of rule expressions is just one way of expressing a given set of business rules, and is dependent on the syntax used to express them.

注意，每组规则表达式只是一组特定业务规则的一种表达方式，它依赖于用于表达它们的语法。

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A rule of thumb is that the syntax is similar to the syntax in C, which in turn is similar to the syntax used in everyday mathematics.

根据经验，语法与 C 中的语法相似，C 中的语法又与平常数学中使用的语法相似。

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