我已經從主機名和用戶定義的環境變量(Linux操作系統Ubuntu) echo $USER
pvicente
echo $HOSTNAME
glace
我得到的CMakeLists.txt的變量,但在檢測到用戶並不HOSTNAME 輸出 -- USER environment variable is set to: pvicente
-- HOSTNAME environment va
我想從我的Rails 5應用程序創建一封電子郵件,並且我想爲每個環境設置「From:」地址。所以我創建的配置/初始化/ mailer_config.rb絲毫此內容 if defined?(Rails)
case Rails.env
when "production"
RAILS_FROM_EMAIL = "[email protected]"
when "t