例如:Object{_id:"9g9ySxozSWn1",name:"test1",price:1}Object{_id:"9g9ySxozSWn2",name:"test2",price:2}Object{_id:"9g9ySxozSWn3",name:"test3",price:3}Object{_id:"9g9ySxozSWn4",name:"test3",price:6}Object{_id:"9g9ySxozSWn5",name:"test3",price:3}总结所有价格的最佳方式是什么，例如名称是test3？ 最佳答案