添加extern crate rand;

6 years ago · fb1b891939
parent 6d65062bde
commit fb1b891939
1 changed files with 2 additions and 0 deletions
--- 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;