From f02403ffec67712b0cc7ec815844edd813ee6fac Mon Sep 17 00:00:00 2001
From: chenxuuu <lolicon@papapoi.com>
Date: Tue, 11 Jan 2022 13:39:35 +0800
Subject: [PATCH] =?UTF-8?q?add:=20=E9=99=90=E5=AE=9A=E4=B8=80=E4=B8=8B?=
 =?UTF-8?q?=E8=B0=83=E7=94=A8rust=20playground=E7=9A=84=E7=89=88=E6=9C=AC,?=
 =?UTF-8?q?=20close=20#160?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 book/book.toml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/book/book.toml b/book/book.toml
index f9b193d0..a60f64d1 100644
--- a/book/book.toml
+++ b/book/book.toml
@@ -19,3 +19,5 @@ line-numbers = true
 enable = true
 level = 2
 
+[rust]
+edition = "2021"   #在线运行用2021版本的