Python调用C++

1、Boost.Python方式

最靠谱的一种方式

这种情况下CMakeLists.txt 的编写：

cmake_minimum_required(VERSION 3.5)

# Find python and Boost - both are required dependencies
find_package(PythonLibs 2.7 REQUIRED)
find_package(Boost COMPONENTS python REQUIRED)

# Without this, any build libraries automatically have names "lib{x}.so"
set(CMAKE_SHARED_MODULE_PREFIX "")

# Add a shared module - modules are intended to be imported at runtime.
# - This is where you add the source files
add_library(hello_ext MODULE hello_ext.cpp)

# Set up the libraries and header search paths for this target
target_link_libraries(hello_ext ${Boost_LIBRARIES} ${PYTHON_LIBRARIES})
target_include_directories(hello_ext PRIVATE ${PYTHON_INCLUDE_DIRS})

代码段的编写：

BOOST_PYTHON_MODULE( CL_CBS ) {
  using namespace boost::python;

  class_ >  ("v1_double")
  .def(vector_indexing_suite > ());

  class_ > >  ("v2_double")
  .def(vector_indexing_suite > > ());
   //此处，python端需要的是三重vector的数据结构，这里也要把单vector，二重vector都写上，如上
  class_ > > > ("v3_double")
  .def(vector_indexing_suite > > >());
  // 一般函数
  def( "main_o", main_o );
  
}