# -*- coding: utf-8 -*-
"""
Created on Sun Dec  3 21:31:21 2017

@author: gxk19
"""

import matplotlib.pyplot as plt
import numpy as np

a=np.arange(10)

plt.ylabel('y')
plt.xlabel('x')
plt.title("Grade")

plt.plot(a,a*1,'go-',a,a*2,'rx',a,a*3,'*',a,a*4,'b-.')
plt.savefig("4",dpi=600)
plt.show()
c05e9bc827d2889bd6ab45e64fcf32d6e8ef9e1d
<mask token>

<mask token>
plt.ylabel('y')
plt.xlabel('x')
plt.title('Grade')
plt.plot(a, a * 1, 'go-', a, a * 2, 'rx', a, a * 3, '*', a, a * 4, 'b-.')
plt.savefig('4', dpi=600)
plt.show()

<mask token>
a = np.arange(10)
plt.ylabel('y')
plt.xlabel('x')
plt.title('Grade')
plt.plot(a, a * 1, 'go-', a, a * 2, 'rx', a, a * 3, '*', a, a * 4, 'b-.')
plt.savefig('4', dpi=600)
plt.show()

<mask token>
import matplotlib.pyplot as plt
import numpy as np
a = np.arange(10)
plt.ylabel('y')
plt.xlabel('x')
plt.title('Grade')
plt.plot(a, a * 1, 'go-', a, a * 2, 'rx', a, a * 3, '*', a, a * 4, 'b-.')
plt.savefig('4', dpi=600)
plt.show()

# -*- coding: utf-8 -*-
"""
Created on Sun Dec  3 21:31:21 2017

@author: gxk19
"""

import matplotlib.pyplot as plt
import numpy as np

a=np.arange(10)

plt.ylabel('y')
plt.xlabel('x')
plt.title("Grade")

plt.plot(a,a*1,'go-',a,a*2,'rx',a,a*3,'*',a,a*4,'b-.')
plt.savefig("4",dpi=600)
plt.show()