want to know how to add
to the specified object in the document
eg:
{"sncode":[
{"model":"666","sncode":"2333333"},
{"model":"666","sncode":"1234569"},
{...}
]}
at present, when I add a new json, it will only be
all the time. {"model":"666","sncode":"2333333"},{"model":"666","sncode":"1234569"}
{"model":"666","sncode":"1234569"}{"model":"666","sncode":"1234569"}because the format of json is out of order from the second one, I can"t read the JSON information correctly anyway.