统计英文文章中出现最多的词汇，并用turtle函数绘制柱状图

import turtle

##全局变量##
#词频排列显示个数
count = 10
#单词频率数组-作为y轴数据
data = []
#单词数组-作为x轴数据
words = []
#y轴显示放大倍数-可以根据词频数量进行调节
yScale = 6
#x轴显示放大倍数-可以根据count数量进行调节
xScale = 30

################# Turtle Start  ####################
#从点(x1,y1)到(x2,y2)绘制线段
def drawLine(t, x1, y1, x2, y2):
t.penup()
t.goto (x1, y1)
t.pendown()
t.goto (x2, y2)

# 在坐标(x,y)处写文字
def drawText(t, x, y, text):
t.penup()
t.goto (x, y)
t.pendown()
t.write(text)

def drawGraph(t):
#绘制x/y轴线
drawLine (t, 0, 0, 360, 0)
drawLine (t, 0, 300, 0, 0)

#x轴: 坐标及描述
for x in range(count):
x=x+1 #向右移一位,为了不画在原点上
drawText(t, x*xScale-4, -20, (words[x-1]))
drawText(t, x*xScale-4, data[x-1]*yScale+10, data[x-1])
drawBar(t)

#绘制一个柱体
def drawRectangle(t, x, y):
x = x*xScale
y = y*yScale#放大倍数显示
drawLine(t, x-5, 0, x-5, y)
drawLine(t, x-5, y, x+5, y)
drawLine(t, x+5, y, x+5, 0)
drawLine(t, x+5, 0, x-5, 0)

#绘制多个柱体
def drawBar(t):
for i in range(count):
drawRectangle(t, i+1, data[i])
################# Turtle End  ####################

#对文本的每一行计算词频的函数
def processLine(line, wordCounts):
#用空格替换标点符号
line = replacePunctuations(line)
#从每一行获取每个词
words = line.split()
for word in words:
if word in wordCounts:
wordCounts[word] += 1
else:
wordCounts[word] = 1

#空格替换标点的函数
def replacePunctuations(line):
for ch in line:
if ch in "~@#$%^&*()_-+=<>?/,.:;{}[]|\'""":
line = line.replace(ch, " ")
return line

def main():
#用户输入一个文件名
filename = input("enter a filename:").strip()
infile = open(filename, "r")

#建立用于计算词频的空字典
wordCounts = {}
for line in infile:
processLine(line.lower(), wordCounts)

#从字典中获取数据对
pairs = list(wordCounts.items())

#列表中的数据对交换位置,数据对排序
items = [[x,y]for (y,x)in pairs]
items.sort()

#输出count个数词频结果
for i in range(len(items)-1, len(items)-count-1, -1):
print(items[i][1]+"\t"+str(items[i][0]))
data.append(items[i][0])
words.append(items[i][1])

infile.close()

#根据词频结果绘制柱状图
turtle.title('词频结果柱状图')
turtle.setup(900, 750, 0, 0)
t = turtle.Turtle()
t.hideturtle()
t.width(3)
drawGraph(t)

#调用main()函数
if __name__ == '__main__':
main()