text: //
  // Created by ximing on 2021/9/5.
  //
  
  #ifndef EM_PORT_API
  #	if defined(__EMSCRIPTEN__)
  #		include <emscripten/emscripten.h>
  #		if defined(__cplusplus)
  #			define EM_PORT_API(rettype) extern "C" rettype EMSCRIPTEN_KEEPALIVE
  #		else
  #			define EM_PORT_API(rettype) rettype EMSCRIPTEN_KEEPALIVE
  #		endif
  #	else
  #		if defined(__cplusplus)
  #			define EM_PORT_API(rettype) extern "C" rettype
  #		else
  #			define EM_PORT_API(rettype) rettype
  #		endif
  #	endif
  #endif