☉ 量入为出 【liànɡrùwéichū】
　　[ base one's expenditure upon one's income；live within income； plan one's expenditure in the light of one's income ] 支出在数量或程度上不超过收入。
　　例： 居家过日子要量入为出
　　[ make ends meet； spend no more than one's income； stretch one's legs according to the coverlet ] 根据收入情况确定支出限度。
　　例： 并用筹策，计较府库，量入为出。——《三国志·卫觊传》