From 69020bce635a21b6203e40bcd9e9645aced1caeb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=A3=9E=E9=BE=99?= <wizard.z@sjtu.edu.cn>
Date: Thu, 26 Jul 2018 12:56:31 +0800
Subject: [PATCH] Update 2.7.md

---
 2.7.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/2.7.md b/2.7.md
index 1bb19a4..da340f0 100644
--- a/2.7.md
+++ b/2.7.md
@@ -268,7 +268,7 @@ ComplexMA(1.0, 3.141592653589793)
         return add.implementations[types](z1, z2)
 ```
 
-add函数的定义本身没有任何功能；它完全地依赖于一个叫做add.implementations的字典去实现泛用加法。我们可以构建如下的字典。
+`add`函数的定义本身没有任何功能；它完全地依赖于一个叫做`add.implementations`的字典去实现泛用加法。我们可以构建如下的字典。
 
 ```py
 >>> add.implementations = {}
-- 
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