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这是一个创建于 3726 天前的主题，其中的信息可能已经有所发展或是发生改变。
from sys import argv
from os.path import exists
script, from_file, to_file = argv
print "Copying from %s to %s" % (from_file, to_file)
we could do these two on one line too, how?
input = open(from_file)
indata = input.read()
print "The input file is %d bytes long" % len(indata)
print "Does the output file exist? %r" % exists(to_file)
print "Ready, hit RETURN to continue, CTRL-C to abort."
raw_input()
output = open(to_file, 'w')
output.write(indata)
print "Alright, all done."
output.close()
input.close()
作者说，他能用一行代码写出来。。。。
第 1 条附言 2015-08-04 23:04:12 +08:00
只能这样写了，实在没办法做到一行代码
from sys import argv
open(argv[2], 'w').write(open(argv[1]).read())
from sys import argv
open(argv[2], 'w').write(open(argv[1]).read())
 | 1 hahastudio 2015-08-04 21:36:19 +08:00  1 |
 | 2 zyqf OP |
 | 3 ytf4425 2015-08-04 21:44:06 +08:00 外行人来欣赏艺术来了 看来码农也有码神啊 |
| 5 hahastudio 2015-08-04 21:47:53 +08:00 @zyqf 不嫌难看的话，你总可以用 ; 分隔 功能上讲的话，那些答案都说明了 |
 | 6 expkzb 2015-08-04 21:51:23 +08:00 we could do these two on one line too, how? 意思不是把特指的两行变一行么 |
 | 7 minvacai 2015-08-04 21:54:31 +08:00 cp from_file to_file #你够 |
| 10 zyqf OP @hahastudio 我还以为有什么复杂的写法呢。。。。 |
 | 12 bububut 2015-08-04 22:11:26 +08:00 楼主需提高阅读理解水平，没让你把所有代码变成一行 |
 | 13 leavic 2015-08-04 22:11:30 +08:00 lambda（语句1 and 语句2 and 语句3） |
 | 16 gamexg 2015-08-04 22:40:14 +08:00 1 指的是这个？还是全部？ print 'Copying from %s to %s'%(__import__('sys').argv[1:]) |
| 17 zyqf OP |
 | 18 zhuangzhuang1988 2015-08-06 11:12:51 +08:00 再怎么复杂的代码都能 exec "from sys import argv;open(argv[2], 'w').write(open(argv[1]).read())" |
 | 19 WKPlus 2015-08-06 13:53:03 +08:00 最后的写法，文件都没关闭。干嘛非要一行写呢，又不是越少越优雅 |
 | 20 saber000 2015-08-06 17:29:08 +08:00 open(__import__("sys").argv[2], "wb").writelines(open(__import__("sys").argv[1])) |
 | 21 goldalan 2016-04-23 04:17:46 +08:00 from sys import argv;open(argv[2], 'w').write(open(argv[1]).read());print("Great") |
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