Custom missing module message
问题 I would like to be able to output a custom error message to STDERR if one of my modules cannot be found. From what I understand if I import the module with the use command the lack of the module will be discovered prior to my script being executed which poses a significant problem to achieving the result that I am looking for. Basically what I am looking for is a Perl equivalent of catching the ImportError exception in Python. 回答1: To catch an exception in Perl you should use the eval