[Ror Note] 1. install and configure the ROR Environment

1. ExploitationRuby-VCheck whether Ruby is installed.Gem -- versionCheck whether rubygems is installed.
2. Download Ruby installation in http://rubyinstaller.rubyforge.orgProgramWhen installing, check all the components, so that rubygems is the same as fashion.
3. After installing Ruby, run the following command:Gem install rails -- include-dependenciesTo install rails.
4. I use MySQL to install the database myself.
5. Finally, we installed netbeans for Ruby.

[Problems Encountered]

1. you cannot use the gem command to install rails: Ruby is easy to install. you can install the program online. However, when you use gem to install rails, you always report an error because you do not know if it is a network problem. The same error is reported for updates including gem. Fortunately, after installing netbeans, when using netbeans to create the ROR project, he will prompt that rails is not installed. In this case, you can install rails in netbeans. In fact, netbeans also uses the gem command to install rails, but it does not know why it can be installed and cannot be understood.
2. you cannot upgrade GEM: after Ruby and rails are installed, if the gem version is too low when you create the ROR project in netbeans, an error is prompted, so I tried to use gem update to upgrade the gem. But there are some options for you to select the object to be upgraded. To be honest, I don't understand the options and find the problem on the Internet: to upgrade the gem itself, run the gem update -- system command.