[{"number":"1","name":"aaa"},{"number":"1.1","name":"bbb"},{"number":"1.2","name":"ccc"},{"number":"2","name":"AA"},{"number":"2.1","name":"BB"}] 比如像这样的数组格式,我新增一条编号是1.3的数据怎么才能放到1.2后面,而不是放到数组的最后