db.getCollection('car').find( {'store':'01296254',status:{$in:['5',5]},#in 表示查询范围 source: {$in: [ 'souche_entering', 'assess', 'app_entering', 'che168', 'kcb', 'chelaike', 'stock', 'cheniu', 'shanghu', 'auction', 'auction-dsc', 'alipay', 'xianyu', 'purchase_payment' ]}, $or:[{'order_status':10},{'order_status':0},{'order_status':{$exists:false} #或语句 }], 'date_delete':{$exists:false}}).count() # 某个字段不存在，count计数