pyplot交互地画多个plot

下面的代码，可以无阻碍地show 5个figure，相当于开启了ipython的interactive 模式

具体参见stackoverflow: in matplotlib, is there a way to pop up a figure asynchronously?

#!/usr/bin/python
import pylab as plb
import matplotlib.pyplot as plt
def show_figure():

　　fig1=plt.figure(1)
　　ax = fig1.add_subplot(1,1,1)
　　ax.plot([1,2,3],[4,5,6],'ro-')
　　plt.ion()     # turns on interactive mode
　　plt.show()    # now this should be non-blocking

　　for i in range(5):
　　　　show_figure()

print "doing something else now"
raw_input('Press Enter to continue...')