From c5393d339bc5a67840158f5ab1c659de632278d3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9C=80=E8=90=8C=E5=B0=8F=E6=B1=90?= <sumneko@hotmail.com>
Date: Tue, 20 Nov 2018 18:50:42 +0800
Subject: =?UTF-8?q?=E5=8F=AF=E9=80=89=E5=8D=8F=E8=AE=AE=E4=B8=8D=E6=8A=9B?=
 =?UTF-8?q?=E9=94=99?=
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---
 server/src/service.lua | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/server/src/service.lua b/server/src/service.lua
index 46a9ca37..c1cf7f2c 100644
--- a/server/src/service.lua
+++ b/server/src/service.lua
@@ -28,6 +28,11 @@ local function listen(self, input, output)
         io.write(buf)
     end)
     session:start(function (method, params)
+        local optional
+        if method:sub(1, 2) == '$/' then
+            method = method:sub(3)
+            optional = true
+        end
         local f = Method[method]
         if f then
             local suc, res, res2 = pcall(f, session, params)
@@ -37,7 +42,11 @@ local function listen(self, input, output)
                 return nil, '发生运行时错误：' .. res
             end
         end
-        return nil, '没有注册方法：' .. method
+        if optional then
+            return false
+        else
+            return nil, '没有注册方法：' .. method
+        end
     end)
 end
 
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