使用pyplot在绘图图例中显示拟合参数

import matplotlib.pyplot as plt
import numpy as np

x = np.linspace(0, 10, 100)
y = 2 * x + 1

plt.scatter(x, y, label='Data Points')
plt.plot(x, y, label='Fit Line')

fit_params = {'slope': 2, 'intercept': 1}
fit_label = 'Fit Line: y = {slope}x + {intercept}'.format(**fit_params)
plt.legend([fit_label])

import matplotlib.pyplot as plt
import numpy as np

x = np.linspace(0, 10, 100)
y = 2 * x + 1

plt.scatter(x, y, label='Data Points')
plt.plot(x, y, label='Fit Line')

fit_params = {'slope': 2, 'intercept': 1}
fit_label = 'Fit Line: y = {slope}x + {intercept}'.format(**fit_params)
plt.legend([fit_label])

plt.show()