rescue_up_to:Rescues 重试一个块，最多多次

救援行动 拯救/重试一个块，最多多次。 安装 将此行添加到应用程序的 Gemfile 中： gem 'rescue_up_to' 然后执行： $ bundle 或者自己安装： $ gem install rescue_up_to 用法 # Rescue / retry something, up to 10 times value = rescue_up_to(10.times) do # do something, rescue StandardError and retry up to 10 times ... end # A more complex / useful example, fetch Google's home page require 'open-uri' contents = rescue_up_to(10.times, from: SocketE