我不知道为什么找不到生成器。
gem install rspec
Fetching: rspec-core-2.8.0.gem (100%)
Fetching: rspec-expectations-2.8.0.gem (100%)
Fetching: rspec-mocks-2.8.0.gem (100%)
Fetching: rspec-2.8.0.gem (100%)
Successfully installed rspec-core-2.8.0
Successfully installed rspec-expectations-2.8.0
Successfully installed rspec-mocks-2.8.0
Successfully installed rspec-2.8.0
4 gems installed
Installing ri documentation for rspec-core-2.8.0...
Installing ri documentation for rspec-expectations-2.8.0...
Installing ri documentation for rspec-mocks-2.8.0...
Installing ri documentation for rspec-2.8.0...
Installing RDoc documentation for rspec-core-2.8.0...
Installing RDoc documentation for rspec-expectations-2.8.0...
Installing RDoc documentation for rspec-mocks-2.8.0...
Installing RDoc documentation for rspec-2.8.0...
$bundle install
...
Your bundle is complete! Use `bundle show [gemname]` to see where a bundled gem is installed.
$ script/rails generate rspec:install
Could not find generator rspec:install.