ATS如何判断路径是文件夹还是文件？

文档：​​https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V2/js-apis-file-fs-0000001451843016-V2#ZH-CN_TOPIC_0000001574088233__stat​​

1. let dirPath = pathDir + "/test";
2. let isDirectory = fs.statSync(dirPath).isDirectory();
3. let isFile = fs.statSync(filePath).isFile();