主题：帮忙改一下这个公式。

“未缴费记录”和“用户信息”表已“电话号码”相关联。

检查“未缴费记录”中所有记录的“话费合计”值有没有小于等于“用户信息”表中相对应记录的“预缴费余额”的记录，如果没有则提示“没有需要处理的数据！”如果有就执行下面的公式。

AddCol("未缴费记录","X",3,False) And EvalFor("未缴费记录","X","[用户信息!预缴费余额]>[话费合计]") And AppendRows("未缴费记录","X","=",-1) And EvalFor(Grid,"上次余额","if(text([处理日期])="""",FindText(""用户信息"",""预缴费余额"",""电话号码"",""="",[电话号码]),[上次余额])") And EvalFor(Grid,"处理日期","if(text([处理日期])="""",today(),[处理日期])") And EvalFor(Grid,"操作员","if([操作员]="""",username,[操作员])") And DelFor(Grid,"电话号码","=","") And RecalcCol("本次余额") And EvalFor("用户信息","处理日期","if(text([处理日期])="""",[预缴费批处理!处理日期],if(Number([处理日期])<Number(FindText(""预缴费批处理"",""处理日期"",""电话号码"",""="",[电话号码],-1)),FindText(""预缴费批处理"",""处理日期"",""电话号码"",""="",[电话号码],-1),[处理日期]))")And EvalFor("用户信息","预缴费余额","if(text([处理日期])="""",[预缴费余额],if(Number([处理日期])<=Number(FindText(""预缴费批处理"",""处理日期"",""电话号码"",""="",[电话号码],-1)),FindText(""预缴费批处理"",""本次余额"",""电话号码"",""="",[电话号码],-1),[预缴费余额]))") And DelFor("未缴费记录","X","=",-1) And DeleteCol("未缴费记录","X") And CopyRows("预缴费历史数据") And RecalcGrid("预缴费历史数据") and cleargrid("预缴费批处理") And MsgBox("操作完毕!",0)