摘要：#第十一节课柱状图##import matplotlib.pyplot as plt##import numpy as np####n = 12##X = np.arange(n)##Y1 = (1-X/float(n))*np.random.uniform(0.5,1.0,n)##Y2 = (1- 阅读全文

摘要：import matplotlib.pyplot as pltimport numpy as np x = np.linspace(-3,3,50)y1 = 2*x+1y2 = x**2 #plt.figure(num=3,figsize=(6,3))#plt.plot(x,y1) plt.figu 阅读全文