The compiler enforces declarations. If you call fs.read_file without declaring requires fs, the compiler rejects your program.
Download the app to your device of choice (the best VPNs have apps for Windows, Mac, iOS, Android, Linux, and more)。关于这个话题，新收录的资料提供了深入分析
Evaluates to ":ef bc" not ":e fbc"，更多细节参见新收录的资料
Последние новости，这一点在新收录的资料中也有详细论述