请问为什么报错 AttributeError: 'Line2D' object has no property 'lable'

请问怎么解决AttributeError: 'Line2D' object has no property 'lable'

import matplotlib.pyplot as plt
import numpy as np

ax = plt.subplot()
ax.plot(np.random.randn(1000).cumsum(), lable="line0")
ax.plot(np.random.randn(1000).cumsum(), lable="line1")
ax.plot(np.random.randn(1000).cumsum(), lable="line2")

ax.set_xlim([0,600])
ax.set_xticks(range(0, 500, 100))
ax.set_xticklabels(['Jan','Feb','Mar','Aust',"Sep"])
ax.set_yticklabels(['Jan','Feb','Mar'])
ax.set_xlabel("Number")
ax.set_ylabel("Example")
ax.set_title("标题",fontproperties='SimHei')
ax.legend()
ax.legend(loc='best')
plt.show()