From 5b1db39c7a9af436c748eb573ccb0042407c42f8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=80=81=E9=A1=BD=E7=AB=A5?=
 <xiaodong.li@asiainnovations.com>
Date: Thu, 17 May 2018 18:43:47 +0800
Subject: [PATCH] co(...) is not a function

co useage error
---
 co/koa.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/co/koa.md b/co/koa.md
index dca95c5..8f2c2b0 100644
--- a/co/koa.md
+++ b/co/koa.md
@@ -37,7 +37,7 @@
                 }
                 //执行第一个中间件
                 yield prev;
-            })();
+            });
         }
     };