TypeError: title() missing 1 required positional argument: 'label'。

[changrui]

raceback (most recent call last):
File ".\fit_curve.py", line 167, in
draw_fit_curve(xs=xs, ys=ys, A=A, order=order) # 可视化多项式曲线拟合结果
File ".\fit_curve.py", line 157, in draw_fit_curve
plt.title(s='最小二乘法拟合多项式N={}的函数曲线f(x)'.format(order))
TypeError: title() missing 1 required positional argument: 'label'

[ASC8384]

把 s= 去掉就行了