<pre name="code" class="python">creazy.txt文件有4G，逐行讀取其內容并寫入monday.txt文件里。 

def creazyRead():   '''''   with open("e:creazy.txt","r") as cr:     for line in cr:       print line   '''   ms = open("e:creazy.txt")   for line in ms:     with open("e:monday.txt","a") as mon:       mon.write(line) 

另一種方法使用readlines實現：

def creazyRead():   ms = open("e:creazy.txt")   for line in ms.readlines():     with open("e:monday.txt","a") as mon:       mon.write(line) 

以上這篇python實現讀取大文件并逐行寫入另外一個文件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。