Go is a relatively new language with a number of attractive features. It's great for writing concurrent programs, thanks to an excellent set of low-level features for handling concurrency. 在很多情况下, 虽然, a handful of reusable abstractions over those low-level mechanisms makes life much easier. This introductory tutorial walks you through building one such abstraction: a wrapper that can turn any data structure into a transactional service in Go.