Python属性错误求解答呀

Question

import numpy as np
import matplotlib.pyplot as plt
from scipy import optimize
x0=[5,10,15,20,25,30,35,40,45,50]
y0=[586,291,198,143,101,98,72,68,59,55]
plt.title('text')
plt.xlabel('R')
plt.ylabel('I')
plt.scatter(x0[:],y0[:],5,'red',linewidth=3)
plt.plot(x0,y0,"blue")
U1=optimize.curve-fit(f-1,x0,y0)[0]
x1=np.arage(5,50.01,0.01)
y1=U1/x1
plt.plot(x1,y1,"orange")
plt.show()
Print("U=",u1)

这个代码，一直显示错误
line 11, in
U1=optimize.curve-fit(f-1,x0,y0)[0]
们
AttributeError: module 'scipy.optimize' has no attribute 'curve'

求解答呀大神们

Answer 1

curve 和 fit 之间是下划线 _ 不能是 -
optimize.curve_fit

optimize.curve_fit(f-1,x0,y0)的f-1应该是个函数，没看到函数的定义啊

print("U=",U1) 注意大小写 print 是全小写，U1的U是大写