matplot同時畫兩條線，程式碼範例

效果圖：

代碼：

import matplotlib.pyplot as pltmigtime = [16.6,16.5,16.9,17.1,17.2,18.1,18.2,18.4,19.4,19.3,20.4,20.3,22,21.7,22]delay = [108,98,92,83,87,77,85,48,31,58,35,43,36,31,19]fig,ax = plt.subplots()plt.xlabel('migration speed (MB/s)')plt.ylabel('migration time (s); request delay (ms)')"""set interval for y label"""yticks = range(10,110,10)ax.set_yticks(yticks)"""set min and max value for axes"""ax.set_ylim([10,110])ax.set_xlim([58,42])x = [57,56,55,54,53,52,51,50,49,48,47,46,45,44,43]plt.plot(x,migtime,"x-",label="migration time")plt.plot(x,delay,"+-",label="request delay")"""open the grid"""plt.grid(True)plt.legend(bbox_to_anchor=(1.0, 1), loc=1, borderaxespad=0.)plt.show()