import matplotlib
import matplotlib.pyplot as plt
import numpy
import math
from pylab import *
x = numpy.linspace(-4,4,200)
f1 = numpy.power(10,x)
f2=numpy.power(math.e,x)
f3 = numpy.power(2,x)
plt.plot(x,f1,'r',x,f2,'b',x,f3,'g',linewidth=2)
plt.axis([-4,4,-0.5,8])
plt.text(1,7.5,r'$10^x$',fontsize=16)
plt.text(2.2,7.5,r'$e^x$',fontsize=16)
plt.text(3.2,7.5,r'$2^x$',fontsize=16)
plt.title('A simple example',fontsize=16)
savefig('power.png',dpi=75)
show()
![这里写图片描述](https://img-blog.csdn.net/20161116183037741)
print('\n'.join([''.join([('LoveAndy'[(x-y)%8]if((x*0.05)**2+(y*0.1)**2-1)**3-(x*0.05)**2*(y*0.1)**3 |