jsonpath获取mawb字段值的前3位后8位record0cus_batchYYZ1116PEKgmt_create1670203084000customs_date2022-12-05bill_period202301port_create_time2022-11-28 190109port_countryOSmawb32455452354gmt_modified1670203086000p
$.record0.mawb.substring(0,3) + $.record0.mawb.substring($.record0.mawb.length-8)
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