AttributeError: ‘Line2D‘ object has no colors‘lable‘ 解决_attributeerror: 'line2d' object has no property 'c

不让我用colors或者color,那就直接这样：

plt.figure(dpi=150)
def f_fit(x,y_fit):
    a,b,c,d = y_fit.tolist()
    return a*x**3 + b*x**2 +c*x + d
def perdict(y_xinyu,colors,shape,degree):
    y_fit = np.polyfit(xinyu.贷款年利率,y_xinyu,3) # 3表示3次函数
    y_show = np.poly1d(y_fit)
    print(y_show)
    y = f_fit(xinyu.贷款年利率,y_fit)
    plt.plot(xinyu.贷款年利率,y_xinyu,shape,label=f'信誉{degree}')
    plt.plot(xinyu.贷款年利率,y,colors,label='拟合线')
    
colors = ['b','y','r']; shape=['b.','y*','r^']; degree=['A','B','C']
for i in range(len(xinyu.columns)-1):
    perdict(xinyu.iloc[:,i+1],colors[i],shape[i],degree[i])

plt.legend()
plt.title('客户流失率与年利率拟合图'); plt.xlabel('年利率'); plt.ylabel('客户流失率')
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