If the returned data has no special instructions, the default return format is: {"status": 1,"msg": "ok"} where status: is the status code, msg: is the prompt message
# The meaning of the following fields in the interface
"total": the total number of data,
"per_page": display number per page,
"current_page": the current page number,
"last_page": total page number,
"dataflag": delete flag -1: deleted 1: normal use,