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#导入必要的模块
import numpy as np
import matplotlib.pyplot as plt import re

with open('C://Users//WANGFEN//Desktop//123.txt') as f: file = f.read() pattern=re.compile('408.+1948') result=pattern.findall(file) print(result)

#将txt文件转换成数组形式保存 for fields in result: fields=fields.strip();#fields.strip()用来删除字符串两端的空白字符。 fields=fields.strip("\n"); # fields.strip("[]")用来删除字符串两端方括号。 fields=fields.split(","); # fields.split(",")的作用是以逗号为分隔符,将字符串进行分隔。 print(fields) lists.append(fields)

tracks = np.array(lists) boxes = tracks[:,2:6]#读入边界框坐标 print(boxes)

x = list
y = x
fig = plt.figure()
ax1 = fig.add_subplot(111)
#设置标题
ax1.set_title('Scatter Plot')
#设置X轴标签
plt.xlabel('X')
#设置Y轴标签
plt.ylabel('Y')
#画散点图
ax1.scatter(x,y,c = 'r',marker = 'o')
#设置图标
plt.legend('x1')
#显示所画的图
plt.show()

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