1.把一个数字的list从小到大排序，然后写入文件，然后从文件中读取出来文件内容，然后反序，在追加到文件的下一行中
import codecs list1 = [2,23,8,54,86,12] list1.sort() with codecs.open(‘1.txt‘,‘wb‘) as f: f.write(str(list1)) with codecs.open(‘1.txt‘,‘rb‘) as f: print (f.read()) list1.reverse() with codecs.open(‘1.txt‘,‘ab‘) as f: f.write(‘\n‘) f.write(str(list1)) with codecs.open(‘1.txt‘,‘rb‘) as f: print (f.read())
程序运行结果：
2.分别把 string， list， tuple， dict写入到文件中
import codecs string = ‘abc‘ li = [‘aa‘,‘bb‘,‘cc‘,‘dd‘] tu = (‘ee‘,‘ff‘,‘gg‘,‘hh‘) di = {"name":"huangdongju","age":20 } with codecs.open(‘2.txt‘,‘wb‘) as file: file.write(string+‘\n‘) file.write(str(li)+‘\n‘) file.write(str(tu)+‘\n‘) file.write(str(di)) with codecs.open(‘2.txt‘,‘rb‘) as file: print (file.read())
程序运行结果：
原文：http://www.cnblogs.com/huangdongju/p/7757955.html