当我读到Thinkinginjava中关于Serializable接口(interface)的时候，有一句话是这样说的:Ifyouusethedefaultmechanismtowritethenon-transientpartsofyourobject,youmustcalldefaultWriteObject()asthefirstoperationinwriteObject(),anddefaultReadObject()asthefirstoperationinreadObject().并且在docs.oracle.com5.6.2:AddingwriteObject/read