[1] Netstrings (4/14/1997, 1:44:10 AM) <http://cr.yp.to/proto/netstrings.txt>
[2] simple is better - JSON-RPC 2.0 Transport: Sockets ( (Roland Koebler著, 6/7/2016, 7:23:31 AM)) <https://www.simple-is-better.org/json-rpc/transport_sockets.html#netstrings>
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