回答編集履歴
1
ソースコード変更版
answer
CHANGED
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@@ -3,16 +3,21 @@
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3
3
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-----
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4
4
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```python
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5
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# -*- coding: utf-8 -*-
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+
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import codecs
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8
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fin = codecs.open('fopeninout-1.txt', 'r', 'utf-8')
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fout = codecs.open('fopeninout-2.txt', 'w', 'utf-8')
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i = 0
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+
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bufs = fin.readlines()
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15
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maxline = len(bufs)
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16
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+
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12
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-
for
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for i in range(maxline,0,-1):
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if ( i % 2 ) :
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fout.write(
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fout.write(bufs[i])
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-
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+
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fin.close()
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fout.close()
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```
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@@ -33,7 +38,7 @@
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-rw-r--r-- 1 root root 1930 10月 17 23:47 2016 fopeninout-2.txt
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```
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36
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-
半分の行が出力されているか？
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41
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+
半分の行が出力されているか？
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-------
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```shell
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@@ -41,15 +46,4 @@
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100 fopeninout-1.txt
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50 fopeninout-2.txt
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150 合計
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44
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# diff -c fopeninout*.txt | head -10
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45
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*** fopeninout-1.txt 2016-10-17 23:44:13.853878905 +0900
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46
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--- fopeninout-2.txt 2016-10-17 23:47:24.646889341 +0900
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47
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***************
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48
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*** 1,100 ****
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49
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- /
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50
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/selinux
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51
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- /media
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/.autorelabel
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- /sys
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-
/sys/fs
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55
49
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```
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