UserWarning: Legend does not support——python matplotlib报错
报错:UserWarning:Legenddoesnotsupport[]instances.Aproxyartistmaybeusedinstead.绘图部分代码l_a=plt.plot(x,y_weight,color='red',linestyle="--",linewidth=2)#在当前绘图对象绘图l_b=plt.plot(x,y_money,color='blue',linestyle