A OR B OR(C和D)
Product.search where: {or: [[{brand: 'nike'}, {in-stock: true}, {price: {lte: 12}, color: 'red'}]]}A AND B AND(C OR D)
Product.search where: {brand: 'nike', in-stock: true, or: [ [{price: {lte: 12}}, {color: 'red'}] ]}更新资料
(A或B)和(C或D)
Product.search where: {or: [[ {or: [[{brand: "nike"}, {in-stock: "true"}]]}], [{or: [[{price: 100}, {color: "red"}]]}]]}


