From 9071cec11720e5040e6e6a4585cc8f2b04ae14c4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=97=AD=E6=97=A5=E4=B8=9C=E5=8D=87?=
 <8113091+xrdspxd@user.noreply.gitee.com>
Date: Mon, 19 Oct 2020 14:45:24 +0800
Subject: [PATCH] =?UTF-8?q?add=20homework=5F02=5Fnumpy=5Fmatplotlib/2.?=
 =?UTF-8?q?=EF=BC=883=EF=BC=89.text.?=
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---
 .../2.\357\274\2103\357\274\211.text"            | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 "homework_02_numpy_matplotlib/2.\357\274\2103\357\274\211.text"

diff --git "a/homework_02_numpy_matplotlib/2.\357\274\2103\357\274\211.text" "b/homework_02_numpy_matplotlib/2.\357\274\2103\357\274\211.text"
new file mode 100644
index 0000000..eb4771d
--- /dev/null
+++ "b/homework_02_numpy_matplotlib/2.\357\274\2103\357\274\211.text"
@@ -0,0 +1,16 @@
+import matplotlib.pyplot as plt
+import numpy as np
+a = [0, 0]
+A = [a, ]
+while len(A) < 1000:
+    p = np.array([[0, 1], [1, 0], [0, -1], [-1, 0]])
+    b = np.random.randint(len(p))
+    a = np.array(a) + p[b]
+    c = list(a)
+    A.append(c)
+B = np.array(A).T
+plt.scatter(0, 0, c='r')
+plt.axis('off')
+plt.plot(B[0], B[1], c='g')
+
+plt.show()
-- 
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