文件操作

Posted 2020-12-18 zhmz

 1 # r 读
 2 f = open(‘十多年‘,mode=‘r‘,encoding=‘utf-8‘)
 3 re = f.read()
 4 print(re)
 5 f.close()
 6 
 7 # w 写
 8 f = open(‘miaoge.txt‘,mode=‘w‘,encoding=‘utf-8‘)
 9 re = f.write(‘nihaomavyjgiul‘)
10 print(re)
11 f.close()
12 
13 
14 # a 添加到文件的末尾
15 f = open(‘miaoge.txt‘,mode=‘a‘,encoding=‘utf-8‘)
16 re = f.write(‘nihaomavyjgiul‘)
17 print(re)
18 f.close()
19 
20 
21 # 添加到文件的开头
22 f = open(‘miaoge.txt‘,mode=‘r+‘,encoding=‘utf-8‘)
23 re = f.write(‘找iCasio精品l‘)
24 print(re)
25 f.close()
26 
27 # 把一个文件里内容读出来的信息，再写到其他一个文件里
28 f1 = open(‘miaoge.txt‘,mode=‘r‘,encoding=‘utf-8‘)
29 f2 = open(‘xxx‘,mode=‘w‘,encoding=‘utf-8‘)
30 contene = f1.read()
31 f2.write(contene)
32 f1.close()
33 f2.close()