编译的预处理阶段对程序文本进行宏替换，包含进其他源文件，并进行条件编译。
A preprocessing step performs macro substitution on program text, inclusion of other source files, and conditional compilation.
这意味着宏所使用的所有临时变量都会在替换发生之前自动重新进行命名，从而防止名字产生冲突。
This means that all temporary variables used by a macro are automatically renamed before the substitution occurs in order to prevent them from having conflicting names.
用不冲突的名称替换引入的变量名，这种方法称为健康的（hygiene）；产生的宏称为健康的宏（hygienicmacros）。
The idea of replacing introduced variable names with non-conflicting names is called hygiene; the resulting macros are called hygienic macros.
宏处理器将会认出你的简写并将它们替换成展开后的形式。
The macro processor will recognize your shorthand terms and replace them with their expanded form.
创建团队项目时，宏将替换为团队项目的名称。
When the team project is created, the macro is replaced with the name of the team project.
菜单项宏可以包含{和}宏，它们将分别由链接url和链接文本替换。
Menu Item macros can contain {u} and {t} macros, which will be replaced by link URL and link Text respectively.
菜单项宏可以包含{和}宏，它们将分别由链接url和链接文本替换。
Menu Item macros can contain {u} and {t} macros, which will be replaced by link URL and link Text respectively.
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