From 315054f39e6c4d6ac4f93f2df477976619c0c381 Mon Sep 17 00:00:00 2001
From: WaySLOG <wayslog@163.com>
Date: Sun, 3 Apr 2016 19:57:07 +0800
Subject: [PATCH] change output

---
 10-trait/10-01-trait.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/10-trait/10-01-trait.md b/10-trait/10-01-trait.md
index 28dd20b..73bce77 100644
--- a/10-trait/10-01-trait.md
+++ b/10-trait/10-01-trait.md
@@ -38,7 +38,7 @@ fn main() {
 这个程序会输出：
 
 ```
-circle c has an area of 1
+circle c has an area of 3.141592653589793
 ```
 
 ## trait与泛型