文件操作 - return.rst
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文件: /usr/share/cmake3/Help/command/return.rst
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return ------ Return from a file, directory or function. .. code-block:: cmake return() Returns from a file, directory or function. When this command is encountered in an included file (via :command:`include` or :command:`find_package`), it causes processing of the current file to stop and control is returned to the including file. If it is encountered in a file which is not included by another file, e.g. a ``CMakeLists.txt``, control is returned to the parent directory if there is one. If return is called in a function, control is returned to the caller of the function. Note that a :command:`macro <macro>`, unlike a :command:`function <function>`, is expanded in place and therefore cannot handle ``return()``.
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