python读取txt文件中特定位置字符的方法

# -*- coding:utf-8 -*-

import sys
reload(sys)
sys.setdefaultencoding('utf8')
fp = open("resources.txt", "r")
sample = fp.readlines()

file=open("test.txt", "w")

for line in sample:
 sample_ = line.split('固定字符')
 print(sample_[n])
 file.write(sample_[n])
 file.write('\n')