我与铁路3号左右,但Im仍然用于铁路2.3.8号,因此我安装了这两部铁路。 要想使铁路快速运行,以显示金刚石是如何运作的,我想进行“指挥编码”测试——应用<>铁路/代码”,但由于我安装了铁路3号,我必须操作<条码>铁路新测试——应用,但这将产生铁路3号。 在安装铁路3号时,是否有一条路要紧?
我认为,你期待的是:
rails _2.1.0_ projectname
在该项目中,所有旧的文字/服务器都有文字/基因束缚。
这是>rvm s gemsets/a><>>。 你们都可以这样做。
a nutshell(installing rvm):
% rvm gemset create rails2
% rvm gemset use rails2
% gem install rails -v=2.3.8
现在,你目前的<铁路编码>是铁路2!
每当你希望使用铁路2而不是铁路3时,就应当:
% rvm gemset use rails2
这将对目前的终端/舱面会议仍然有效。 你们也可以转而:
% rvm default
当然,你也可以做相反的事情,并创设一个<条码>铁路3,在铁路3号附近玩.,并离开作为违约安装的铁路2号。
(除了有缩略语外,rvm,请您在同一系统中安装多个版本的Ruby,使您能够用一个简单的rvm 1.8.7在不同版本之间转换。)
http://rvm.io/“rel=”
你们可以使用不同的/多维的废墟版本,并享有不同的地球动力:
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