我有这段代码，它按预期运行和完成。但在错误之后给出错误。Missingoperator.'-3'isnotrecognizedasaninternalorexternalcommand,operableprogramorbatchfile.Missingoperator.'-3'isnotrecognizedasaninternalorexternalcommand,operableprogramorbatchfile.r.6.5.mca它确实回应了正确的答案，虽然它是r.6.5.mca这是代码SET/aminrand=-3SET/amaxrand=3set/aplaceobject=