From 9eb16a52f20afcad9e0c7bcd4583567a88b2b56b Mon Sep 17 00:00:00 2001
From: Xargin <cao1988228@163.com>
Date: Thu, 21 Jul 2016 14:44:21 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BB=A3=E7=A0=81=E6=A0=BC=E5=BC=8Ffix?=
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---
 ch9/ch9-07.md | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/ch9/ch9-07.md b/ch9/ch9-07.md
index 428da9e..04a58b1 100644
--- a/ch9/ch9-07.md
+++ b/ch9/ch9-07.md
@@ -163,12 +163,13 @@ type Memo struct {
 
 // Get is concurrency-safe.
 func (memo *Memo) Get(key string) (value interface{}, err error) {
-	res, ok := memo.cache[key] if!ok{
+    res, ok := memo.cache[key]
+    if !ok {
 	res.value, res.err = memo.f(key)
 	memo.cache[key] = res
 	memo.mu.Lock()
 	res, ok := memo.cache[key]
-	if !ok {
+    if !ok {
 		res.value, res.err = memo.f(key)
 		memo.cache[key] = res
 	}