python  Matplotlib绘图直线,折线,曲线

import matplotlib.pyplot as plt
import numpy as np
 
xpoints = np.array([0, 6]) #0-6的范围
ypoints = np.array([0, 100]) #0-100的范围
 
plt.plot(xpoints, ypoints)
plt.show()

import matplotlib.pyplot as plt
import numpy as np
 
xpoints = np.array([1, 8])
ypoints = np.array([3, 10])
 
plt.plot(xpoints, ypoints, 'o')
plt.show()

import matplotlib.pyplot as plt
import numpy as np
 
xpoints = np.array([1, 2, 6, 8])
ypoints = np.array([3, 8, 1, 10])
 
plt.plot(xpoints, ypoints)
plt.show()

import matplotlib.pyplot as plt
import numpy as np
 
ypoints = np.array([3, 10])
 
plt.plot(ypoints)
plt.show()

import matplotlib.pyplot as plt
import numpy as np
 
ypoints = np.array([3, 8, 1, 10, 5, 7])
 
plt.plot(ypoints)
plt.show()

import matplotlib.pyplot as plt
import numpy as np
 
x = np.arange(0,4*np.pi,0.1)   # 开始,停止,步频
y = np.sin(x)
z = np.cos(x)
plt.plot(x,y,x,z)
plt.show()