此处为摘抄代码

 1 # encoding=utf-8
 2 import matplotlib.pyplot as plt
 3 from pylab import *                 #支持中文
 4 mpl.rcParams[‘font.sans-serif‘] = [‘SimHei‘]
 5  
 6 names = [‘5‘, ‘10‘, ‘15‘, ‘20‘, ‘25‘]
 7 x = range(len(names))
 8 y = [0.855, 0.84, 0.835, 0.815, 0.81]
 9 y1=[0.86,0.85,0.853,0.849,0.83]
10 #plt.plot(x, y, ‘ro-‘)
11 #plt.plot(x, y1, ‘bo-‘)
12 #pl.xlim(-1, 11) # 限定横轴的范围
13 #pl.ylim(-1, 110) # 限定纵轴的范围
14 plt.plot(x, y, marker=‘o‘, mec=‘r‘, mfc=‘w‘,label=u‘y=x^2曲线图‘)
15 plt.plot(x, y1, marker=‘*‘, ms=10,label=u‘y=x^3曲线图‘)
16 plt.legend() # 让图例生效
17 plt.xticks(x, names, rotation=45)
18 plt.margins(0)
19 plt.subplots_adjust(bottom=0.15)
20 plt.xlabel(u"time(s)邻居") #X轴标签
21 plt.ylabel("RMSE") #Y轴标签
22 plt.title("A simple plot") #标题
23  
24 plt.show()