Promise和async/await在ArkTS中的使用是否有特殊限制？

async function myAsyncFunction(): Promise<void> {
  try {
    const result: string = await new Promise((resolve: Function) => {
      resolve('Hello, world!');
    });
  } catch (e) {
    console.error(`Get exception: ${e}`);
  }
}

myAsyncFunction();

import fileio from '@ohos.fileio';

async function readFile(path: string) {
  try {
    const file = await fileio.open(path);
    // 读取文件操作
    await fileio.close(file);
  } catch (error) {
    console.error('文件操作失败:', error);
  }
}