Python疑问，求平均值问题

Question

105.408635, 109.058062109.711955, 107.612010106.770910, 107.178111104.902315, 108.942544106.429432, 109.986264106.350715, 108.745940107.208566, 106.724891105.758081, 107.954024106.635802, 105.702770109.028467, 105.940024104.741757, 109.545083104.469050, 105.768578105.860169, 106.943419104.190133, 108.945727108.427905, 107.905775105.105144, 108.668921105.584954, 110.006551105.130636, 105.577014106.174433, 106.636557107.386285, 108.500267107.742580, 110.253006107.594896, 106.710349109.138761, 106.629520...... .......Python读取txt文件，然后咋将第一列数字求平均值啊

Answer 1

 import sys

sum = 0
cnt = 0
f = open('1.txt', 'r')
s = f.readline()
while (s):
    sum = sum + float(s.split(",")[0])
    cnt = cnt + 1
    s = f.readline()
print(sum / cnt)
f.close()


106.51093830434785