From e4cec220de6ba6dc4bd990d153d5d2e60c8d5988 Mon Sep 17 00:00:00 2001
From: drunL1 <33289005+drunL1@users.noreply.github.com>
Date: Sun, 10 Mar 2019 18:49:34 +0800
Subject: [PATCH] Add files via upload

---
 l2_3.py | 3 +++
 1 file changed, 3 insertions(+)
 create mode 100644 l2_3.py

diff --git a/l2_3.py b/l2_3.py
new file mode 100644
index 0000000..95a09b1
--- /dev/null
+++ b/l2_3.py
@@ -0,0 +1,3 @@
+#simple calculate
+n=eval(input('please input a expression:'))
+print(n)