如何在ruby中显示错误类型？

在下面的代码中

begin
 raise StandardError,'message'
 #some code that raises a lot of exception
rescue StandardError
 #handle error
rescue OtherError
 #handle error
rescue YetAnotherError
 #handle error
end

我想打印一个警告,指出错误的类型和消息,而不会向每个救援条款添加print语句,例如

begin
 raise StandardError,'message'
 #some code that raises a lot of exception
rescue StandardError
 #handle error
rescue OtherError
 #handle error
rescue YetAnotherError
 #handle error
???
 print "An error of type #{???} happened,message is #{???}"
end

解决方法

begin
  raise ArgumentError,"I'm a description"
rescue Exception => ex
  puts "An error of type #{ex.class} happened,message is #{ex.message}"
end

打印：发生错误类型ArgumentError,消息是我的描述

原文地址：https://www.jb51.cc/ruby/273113.html