From 737d742c154f4700a3045b815c0e0c4e1c97cfb1 Mon Sep 17 00:00:00 2001
From: Lam <15622383059@163.com>
Date: Thu, 6 Dec 2018 15:41:44 +0800
Subject: [PATCH] fix a little problem

---
 src/ch02-00-guessing-game-tutorial.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/ch02-00-guessing-game-tutorial.md b/src/ch02-00-guessing-game-tutorial.md
index 4ce9676..45b4163 100644
--- a/src/ch02-00-guessing-game-tutorial.md
+++ b/src/ch02-00-guessing-game-tutorial.md
@@ -349,6 +349,8 @@ rand = "0.4.0"
 <span class="filename">文件名: src/main.rs</span>
 
 ```rust,ignore
+extern crate rand;
+
 use std::io;
 use rand::Rng;