php中__sleep方法的使用

Output:

   Using the default text output, the message format is :

  MESSAGE_TYPE: LINE_NUM:[OBJECT:] MESSAGE

  There are 5 kind of message types :

  * (C) convention, for programming standard violation

  * (R) refactor, for bad code smell

  * (W) warning, for python specific problems

  * (E) error, for probable bugs in the code

  * (F) fatal, if an error occurred which prevented pylint from doing further processing.