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