HarmonyOS napi_load_module_with_info怎么加载自己模块中的ArkTS函数

//.cpp: 
static napi_value loadModule(napi_env env, napi_callback_info info) { 
  napi_value result; 
  //1. 使用napi_load_module_with_info加载har模块 
  napi_status status = napi_load_module_with_info(env, "entry/src/main/ets/pages/test", "com.example.callback/entry", &result); 
  napi_value testFn; 
  //2. 使用napi_get_named_property获取test函数 
  napi_get_named_property(env, result, "test", &testFn); 
  napi_value inputargs[2]; 
  int32_t a=3,b=1; 
  napi_create_int32(env, a, &inputargs[0]); 
  napi_create_int32(env, b, &inputargs[1]); 
  //3. 使用napi_call_function调用函数test 
  napi_value output; 
  napi_call_function(env, result, testFn, 2, inputargs, &output); 
  return output; 
} 
 
//.d.ts 
export const loadModule:()=>any; 
 
//entry/src/main/ets/pages/test.ets: 
export function test(a:number,b:number){ 
  let c = a-b 
  console.log("%d - %d = %d",a,b,c) 
} 
//build-profile.json5: 
"buildOption": { 
  "arkOptions": { 
    "runtimeOnly": { 
      "sources": [ 
      "./src/main/ets/pages/test.ets" 
      ] 
    } 
  },