db.command.push新增一条数据结果却是新增了一个长度为一的数组 这个是我添加前打出来的日志2019-10-13T08:20:22.436Z  { amount: 1, avatarUrl: '', createTime: 1570954822026, creator: '', date: '2019-10-13', editTime: 1570954822026, nickName: '将何往', picturePathes: [], remark: '', tags: [ '其他' ], type: 'pay', voicePathes: [] } 这个时系统打印的日志2019-10-13T08:20:22.437Z  [ { amount: 1, avatarUrl: '', createTime: 1570954822026, creator: '', date: '2019-10-13', editTime: 1570954822026, nickName: '将何往', picturePathes: [], remark: '', tags: [ '其他' ], type: 'pay', voicePathes: [] } ]