Python String Manipulation

Question

我有一个如下所示的文件.我想要的只是电压,剥离其他所有东西最简单的方法是什么？

Time,Voltage,Peak
0.0,1.003911558621642,3
0.00390625,1.0327467181982755,0
0.0078125,0.9904463156237306,0
0.01171875,0.6867661682528724,0
0.015625,0.6236803073669519,0
0.01953125,0.2934711210503298,0
0.0234375,0.06148933838536881,0
0.02734375,0.07053968550834916,0
0.03125,-0.09041720958299812,0
0.03515625,-0.28273374252040306,0
0.0390625,-0.29775398016603216,0

Answer 1

这听起来像csv模块的工作

import csv
with open("input.txt", "rb") as f:
    reader = csv.reader(f)
    next(reader)
    for i in reader:
        print float(i[1])