py

base/language_survey.py

@@ -8,10 +8,10 @@ my_survey = AnonymousSurvey(question)
 my_survey.show_question()
 print("Enter 'q' at any time to quit.\n")
 while True:
-	response = input("language: ")
-	if response == 'q':
-		break
-	my_survey.store_response(response)
+    response = input("language: ")
+    if response == 'q':
+        break
+    my_survey.store_response(response)
 
 # 显示调查结果
 print("\nThank you to everyone who participated in the survey!")

base/test_survey.py

@@ -2,44 +2,44 @@ import unittest
 from survey import AnonymousSurvey
 
 class TestAnonymousSurvey(unittest.TestCase):
-	"""针对AnonymousSurvey的测试"""
-	
-	# def test_store_single_response(self):
-	# 	"""测试单个答案会被妥善的存储"""	
-	# 	question = "What language did you first learn to speak?"
-	# 	my_survey = AnonymousSurvey(question)
-	# 	my_survey.store_response('English')
-
-	# 	self.assertIn("English", my_survey.responses)		
-
-	# def test_store_three_responses(self):
-	# 	"""测试三个答案会被妥善地存储"""
-	# 	question = "What language did you first learn to speak?"
-	# 	my_survey = AnonymousSurvey(question)
-	# 	responses = ['English', 'Spanish', 'Mandarin']
-	# 	for response in responses:
-	# 		my_survey.store_response(response)
-
-	# 	for response in responses:
-	# 		self.assertIn(response, my_survey.responses)
-
-	def setUp(self):
-		"""创建一个调查对象和一组答案, 供使用的测试方法使用"""
-		question = "What language did you first learn to speak?"
-		self.my_survey = AnonymousSurvey(question)
-		self.responses = ['English', 'Spanish', 'Mandarin']
-		
-	def test_store_single_response(self):
-		"""测试单个答案会被妥善的存储"""	
-		self.my_survey.store_response(self.responses[0])
-		self.assertIn(self.responses[0], self.my_survey.responses)		
-
-	def test_store_three_responses(self):
-		"""测试三个答案会被妥善地存储"""
-		for response in self.responses:
-			self.my_survey.store_response(response)
-
-		for response in self.responses:
-			self.assertIn(response, self.my_survey.responses)
+    """针对AnonymousSurvey的测试"""
+    
+    # def test_store_single_response(self):
+    #     """测试单个答案会被妥善的存储"""
+    #     question = "What language did you first learn to speak?"
+    #     my_survey = AnonymousSurvey(question)
+    #     my_survey.store_response('English')
+    #
+    #     self.assertIn("English", my_survey.responses)
+
+# def test_store_three_responses(self):
+#     """测试三个答案会被妥善地存储"""
+#     question = "What language did you first learn to speak?"
+#     my_survey = AnonymousSurvey(question)
+#     responses = ['English', 'Spanish', 'Mandarin']
+#     for response in responses:
+#         my_survey.store_response(response)
+#
+#     for response in responses:
+#         self.assertIn(response, my_survey.responses)
+
+def setUp(self):
+    """创建一个调查对象和一组答案, 供使用的测试方法使用"""
+    question = "What language did you first learn to speak?"
+    self.my_survey = AnonymousSurvey(question)
+    self.responses = ['English', 'Spanish', 'Mandarin']
+
+def test_store_single_response(self):
+    """测试单个答案会被妥善的存储"""
+    self.my_survey.store_response(self.responses[0])
+    self.assertIn(self.responses[0], self.my_survey.responses)
+
+def test_store_three_responses(self):
+    """测试三个答案会被妥善地存储"""
+    for response in self.responses:
+        self.my_survey.store_response(response)
+
+    for response in self.responses:
+        self.assertIn(response, self.my_survey.responses)
 
 unittest.main()
\ No newline at end of file

matplotlib/random_walk.py

@@ -2,40 +2,40 @@ from random import choice
 
 
 class RandomWalk:
-	"""一个生成随机漫步数据的类"""
-
-	def __init__(self, num_points=5000):
-		"""初始化随机漫步的属性"""
-		self.num_points = num_points
-
-		# 所有随机漫步都始于（0，0）
-		self.x_values = [0]
-		self.y_values = [0]
-
-	def fill_walk(self):
-		"""计算随机漫步包含的所有点"""
-
-		# 不断漫步，知道列表达到指定的长度
-		while len(self.x_values) < self.num_points:
-			# choice() 随机选择列表中的一个数
-			# 决定前进方向以及沿这个方向前进的距离
-			# x 的方向
-			x_direction = choice([1, -1])
-			# x 的距离
-			x_distance = choice([0, 1, 2, 3, 4])
-			x_step = x_direction * x_distance
-
-			y_direction = choice([1, -1])
-			y_distance = choice([0, 1, 2, 3, 4])
-			y_step = y_direction * y_distance
-
-			# 拒绝原地踏步
-			if x_step == 0 and y_step == 0:
-				continue
-
-			# 计算下一个点的x和y值
-			next_x = self.x_values[-1] + x_step
-			next_y = self.y_values[-1] + y_step
-
-			self.x_values.append(next_x)
-			self.y_values.append(next_y)
+    """一个生成随机漫步数据的类"""
+
+    def __init__(self, num_points=5000):
+        """初始化随机漫步的属性"""
+        self.num_points = num_points
+
+        # 所有随机漫步都始于（0，0）
+        self.x_values = [0]
+        self.y_values = [0]
+
+    def fill_walk(self):
+        """计算随机漫步包含的所有点"""
+
+        # 不断漫步，知道列表达到指定的长度
+        while len(self.x_values) < self.num_points:
+            # choice() 随机选择列表中的一个数
+            # 决定前进方向以及沿这个方向前进的距离
+            # x 的方向
+            x_direction = choice([1, -1])
+            # x 的距离
+            x_distance = choice([0, 1, 2, 3, 4])
+            x_step = x_direction * x_distance
+
+            y_direction = choice([1, -1])
+            y_distance = choice([0, 1, 2, 3, 4])
+            y_step = y_direction * y_distance
+
+            # 拒绝原地踏步
+            if x_step == 0 and y_step == 0:
+                continue
+
+            # 计算下一个点的x和y值
+            next_x = self.x_values[-1] + x_step
+            next_y = self.y_values[-1] + y_step
+
+            self.x_values.append(next_x)
+            self.y_values.append(next_y)

matplotlib/rw_visual.py

@@ -4,27 +4,27 @@ from random_walk import RandomWalk
 
 # 只要程序处于活动状态，就不断地模拟随机漫步
 while True:
-	# 创建一个RandomWalk实例，并将其包含的点都绘制出来
-	rw = RandomWalk(50000)
-	rw.fill_walk()
+    # 创建一个RandomWalk实例，并将其包含的点都绘制出来
+    rw = RandomWalk(50000)
+    rw.fill_walk()
 
-	# 设置绘图窗口的尺寸
-	plt.figure(dpi=256, figsize=(10, 6))
+    # 设置绘图窗口的尺寸
+    plt.figure(dpi=256, figsize=(10, 6))
 
-	point_numbers = list(range(rw.num_points))
-	# 给点着色看出漫步的轨迹
-	plt.scatter(rw.x_values, rw.y_values, c=point_numbers, cmap=plt.cm.Blues, edgecolor='none', s=1)
+    point_numbers = list(range(rw.num_points))
+    # 给点着色看出漫步的轨迹
+    plt.scatter(rw.x_values, rw.y_values, c=point_numbers, cmap=plt.cm.Blues, edgecolor='none', s=1)
 
-	# 突出起点和终点
-	plt.scatter(0, 0, c='green', edgecolor='none', s=100)
-	plt.scatter(rw.x_values[-1], rw.y_values[-1], c='red', edgecolor='none', s=100)
+    # 突出起点和终点
+    plt.scatter(0, 0, c='green', edgecolor='none', s=100)
+    plt.scatter(rw.x_values[-1], rw.y_values[-1], c='red', edgecolor='none', s=100)
 
-	# 隐藏坐标轴
-	plt.axes().get_xaxis().set_visible(False)
-	plt.axes().get_yaxis().set_visible(False)
+    # 隐藏坐标轴
+    plt.axes().get_xaxis().set_visible(False)
+    plt.axes().get_yaxis().set_visible(False)
 
-	plt.show()
+    plt.show()
 
-	keep_running = input("是否再模拟一次随机漫步？（y/n）：")
-	if keep_running == 'n':
-		break
+    keep_running = input("是否再模拟一次随机漫步？（y/n）：")
+    if keep_running == 'n':
+        break