MongoDB数据没有存储在/ data / db中，虽然它正在保存数据......但是在哪里？

I'm completely new to MongoDB - I've installed all the programs and set it up so that I run mongod.exe and then mongo.exe. I created a new database called 'test' and inserted some data. However, I can't see any files being created in the /data/db directory. The data is definitely being stored somewhere, and when I closed down all the cmd boxes and started the processes again, the data I initially pushed onto the DB is still there.I'm completely new to MongoDB - I've installed