From 3d562b202fe00ff3dc20123907b8748af8067e6d Mon Sep 17 00:00:00 2001
From: 6yf <6yifeng@gmail.com>
Date: Fri, 22 Nov 2013 14:59:57 +0800
Subject: [PATCH] =?UTF-8?q?=E5=90=88=E5=B9=B6=E4=B8=A4=E6=AC=A1b.Volume()?=
 =?UTF-8?q?=E4=B8=BA=E4=B8=80=E6=AC=A1=E8=B0=83=E7=94=A8?=
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合并两次b.Volume()为一次调用，培养注重效率的习惯，充分利用Go的if可设初始值的特性。
---
 ebook/02.5.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ebook/02.5.md b/ebook/02.5.md
index 2db1de3c..537bd434 100644
--- a/ebook/02.5.md
+++ b/ebook/02.5.md
@@ -160,8 +160,8 @@ method的语法如下：
 		v := 0.00
 		k := Color(WHITE)
 		for _, b := range bl {
-			if b.Volume() > v {
-				v = b.Volume()
+			if bv := b.Volume(); bv > v {
+				v = bv
 				k = b.color
 			}
 		}