Julia：更新（Update）Memcached的数据

#! /usr/bin/julia
#
#   mcached_update.jl
#
#                   Dec/30/2021
# --------------------------------------------------------------------
using Memcache
using JSON
# --------------------------------------------------------------------
println(stderr,"*** 開始 ***")
key_in = ARGS[1]
population_in = ARGS[2]
println(key_in,'\t',population_in)
#
mc = MemcacheClient("localhost", 11211)
#
try
    str_json = get(mc,key_in)
    println(str_json)
    unit_aa = JSON.parse(str_json)
    unit_aa["population"] = population_in
    today = Libc.strftime("%F", time())
    unit_aa["date_mod"] = today
    str_json_new = JSON.json(unit_aa)
    println(str_json_new)
    set(mc,key_in,str_json_new)
catch
end
#
println(stderr,"*** 終了 ***")
# --------------------------------------------------------------------