Question

我有一个大的字符串文本文件，我想每117个字符拆分字符串，然后将下一个117个字符放在换行符上，依此类推，直到文件结束。

我试过这个：`s =“”“ 我出于可见性原因删除了字符串 “”” space =“”“

“”” file = open（'testoutput.txt'，'w'）而s： print s [：10] output = output + s +“”“

"""
s = s[10:]

file.write（输出） file.close（）打印“完成” `

但问题是文件中的最终输出看起来像这样的级联：`[this [SHIFT] r [BACKSPACE]分子及其后代av [BACKSPACE] [BACKSPACE]因突变而变化

T]r[BACKSPACE]molecule and its descendants would av[BACKSPACE][BACKSPACE]vary because of mutations



ACE]molecule and its descendants would av[BACKSPACE][BACKSPACE]vary because of mutations



le and its descendants would av[BACKSPACE][BACKSPACE]vary because of mutations



 descendants would av[BACKSPACE][BACKSPACE]vary because of mutations



ts would av[BACKSPACE][BACKSPACE]vary because of mutations



v[BACKSPACE][BACKSPACE]vary because of mutations



E][BACKSPACE]vary because of mutations



CE]vary because of mutations



cause of mutations



utations

`

Answer 1

while s:
    print s[:117]
    s = s[117:]

Answer 2

您可以使用常规切片语法拆分缓冲区，也可以选择在读取文件时直接拆分文件。这是第二种方法的一个例子：

with open(r"/path/to/some/file") as input_file:
    line = input_file.read(117)
    while line:
        print len(line)
        line = input_file.read(117)

Python，拆分字符串

2 个答案: