为嘛我插入数据的时候有age,但是find的时候没有age字段呢,语法错误????
> db.c1.save({name:"tony"},{age:20})> db.c1.save({name:"Joe"},{age:10})
> db.c1.find()
{ "_id" : ObjectId("516e010a3725b69350459c93"), "name" : "tony" }
{ "_id" : ObjectId("516e01163725b69350459c94"), "name" : "Joe" } 语法错了
> db.c1.save({name:"tony",age:20})
> db.c1.save({name:"Joe",age:10})
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