python之pygal：掷一个骰子统计次数并以直方图形式显示

 1 # pygal包：生成可缩放的矢量图形文件，可自适应不同尺寸的屏幕显示
 2 # 安装：python -m pip intall pygal-2.4.0-py2.py3-none-any.whl
 3 # 功能：掷一个骰子统计次数并以直方图形式显示
 4 import pygal
 5 from die_class import Die
 6 
 7 die = Die()  # 实例化一个骰子对象
 8 
 9 results = []
10 # 掷骰子100次
11 for n in range(100):
12     res = die.roll()
13     results.append(res)
14 
15 print(results)
16 
17 frequencies = []
18 # 统计每个面出现的次数
19 for value in range(1, die.num_sides + 1):
20     frequency = results.count(value)
21     frequencies.append(frequency)
22 
23 print("骰子各面出现的次数：", frequencies)
24 
25 # 使用pygal以直方图形式显示统计结果
26 hist = pygal.Bar()
27 hist.title = ‘掷骰子100次统计结果‘
28 hist.x_labels = [‘1‘, ‘2‘, ‘3‘, ‘4‘, ‘5‘, ‘6‘]
29 
30 hist.x_title = ‘骰子结果‘
31 hist.y_title = ‘出现次数‘
32 
33 hist.add(‘六面的骰子‘, frequencies)
34 hist.render_to_file(‘D:\pywork\output\pygal\die_visual.svg‘)

 1 # 骰子类
 2 from random import randint
 3 
 4 
 5 class Die():
 6     ‘‘‘表示一个骰子类‘‘‘
 7 
 8     def __init__(self, num_sides=6):
 9         ‘‘‘骰子默认为6面‘‘‘
10         self.num_sides = num_sides
11 
12     def roll(self):
13         ‘‘‘返回一个位于1与面数之间的随机数‘‘‘
14         return randint(1, self.num_sides)

1 [2, 3, 6, 6, 1, 3, 1, 3, 1, 3, 1, 3, 6, 2, 1, 5, 5, 3, 6, 5, 1, 3, 4, 3, 3, 4, 2, 2, 3, 3, 4, 6, 1, 3, 1, 5, 5, 5, 5, 1, 3, 5, 5, 3, 5, 4, 3, 2, 5, 2, 1, 1, 2, 6, 6, 4, 4, 2, 1, 3, 3, 2, 5, 3, 1, 1, 3, 4, 1, 2, 1, 2, 1, 2, 6, 1, 3, 3, 6, 6, 3, 1, 1, 2, 4, 5, 4, 3, 2, 1, 6, 6, 6, 2, 6, 1, 4, 3, 1, 1]
2 骰子各面出现的次数： [24, 15, 24, 10, 13, 14]