第四课--pygal 的使用

'''
pygal 的使用
pygal画廊
'''
from random import randint
import pygal


class Die():
    '''
    色子类
    '''

    def __init__(self, num_sides=6):
        self.num_sides = num_sides

    def roll(self):
        return randint(1, self.num_sides)


# 摇动色子
# die = Die()
die_1 = Die()
die_2 = Die()
results = []
for roll_num in range(1000):
    # result = die.roll()
    result = die_1.roll() + die_2.roll()
    results.append(result)
# 分析结果
frequencies = []
max_result = die_1.num_sides + die_2.num_sides
# for value in range(1, die.num_sides + 1):
for value in range(2, max_result + 1):
    frequency = results.count(value)
    frequencies.append(frequency)

# 绘制直方图
hist = pygal.Bar()

# hist.title = "Results of rolling one D6 1000 times."
hist.title = "Results of rolling two D6 1000 times."
# hist.x_labels = [1, 2, 3, 4, 5, 6]
hist.x_labels = [2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
hist.x_title = "Result"
hist.y_title = "Frequency of Result"

# hist.add('D6', frequencies)
hist.add('D6+D6', frequencies)
# hist.add('D6+D6', [4, 2, 5, 33, 11, 22, 44, 22, 88, 3, 4])
# hist.render_to_file('die_visual.svg')
hist.render_to_file('die_visuals.svg')