1.安装RVM
gpg --keyserver hkp://keys.gnupg.net--recv-keys 409B6B1796C275462A1703113804BB82D39DC0E37D2BAF1CF37B13E2069D6956105BD0E739499BDBgpg --keyserver hkp://keys.gnupg.n
gpg --keyserver hkp://keys.gnupg.net--recv-keys 409B6B1796C275462A1703113804BB82D39DC0E37D2BAF1CF37B13E2069D6956105BD0E739499BDBgpg --keyserver hkp://keys.gnupg.n