如下所示：

import matplotlib.pyplot as pltimport numpy as npdef readfile(filename): dataList = [] dataNum = 0 with open(filename,'r') as f:   for line in f.readlines():    linestr = line.strip('/n')   if len(linestr) < 8 and len(linestr) >1:    dataList.append(float(linestr))    dataNum += 1 return dataList, dataNum       y, range = readfile("./session.log") # print yprint "range=%d" % (range)   x = np.linspace(0, 1, range)# plt.plot(x, y, 'r-o')plt.plot(x, y)plt.show()

數據格式：

0.89600.94560.90690.91280.93061.01861.03270.98350.94380.98070.99491.07371.08421.04451.06091.06640.97481.04271.09831.08141.10831.1051

圖形：

以上這篇python實現從文件中讀取數據并繪制成 x y 軸圖形的方法就是小編分享給大家的全部內容了，希望能給大家一個參考，也希望大家多多支持武林站長站。