已安装:matplotlib,pyparsing,numpy,scipy
源代码:
#!/usr/bin/env python
-*- coding:utf-8 -*-
from PIL import Image
from pylab import*
im=array(Image.open('c:\Python27\tiananmen.jpg'))
im.show()
x=[100,100,400,400]
y=[200,500,200,500]
plot(x,y,'r*') #使用红色星状标记绘制点
plot(x[:2],y[:2])#绘制连接前两个点的线
title('Plotting:"tiananmen.jpg"') #添加标题