使用 add_custom_command（）添加构建后步骤， a href = https://cmake.org/cmake/help/v3.4/manual/cmake-generator-expressions.7.html#informational-expressions rel = nofollow noreferrer>生成器表达式：

You could just add a post-build step with add_custom_command() using generator expressions:

add_custom_command(
    TARGET myBinary 
    POST_BUILD
        COMMAND ${CMAKE_COMMAND} -E copy  
                     "${CMAKE_CURRENT_SOURCE_DIR}/myTest.txt" 
                     "$<TARGET_FILE_DIR:myBinary>/myTest.txt"
)

参考

• 在CMake的后期构建步骤中，将目标文件复制到另一个位置

• Copy target file to another location in a post build step in CMake