#鸿蒙通关秘籍#鸿蒙中有没有openfile这类的方法去快速打开文件的？有没有简单的代码?我主要用来做个测试

import { BusinessError } from '@kit.BasicServicesKit';

function openFilePromise() {
  let `guard`: fileGuard.FileGuard = new fileGuard.FileGuard();
  let `path`: string = '/data/test';
  guard.openFile(`path`).then((fd: number) => {
    console.info(`Succeeded in opening file. path: ${`path`} , fd: ${fd}.`);
  }).catch((err: BusinessError) => {
    console.error(`Failed to open file. Code: ${err.code}, message: ${err.message}.`);
  });
}