Cling执行CPython指令

  sudo apt-get install python3-dev

  python3-config --cflags

  cling -I/usr/include/python3.8  -L/usr/include/python3.8 -l python3.8

  #include <Python.h>

  Py_Initialize()

  PyRun_SimpleString("print('hello C !')");

  #include <object.h>
  #include <floatobject.h>
    
  PyObject *f = PyFloat_FromDouble(3.14);
  PyPrint(f, stdout, 0);

  Py_Finalize()