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This topic created in 3931 days ago, the information mentioned may be changed or developed.
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。。。。
Supplement 1 · Aug 4, 2015
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())
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1
hahastudio Aug 4, 2015  1
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zyqf OP |
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3
ytf4425 Aug 4, 2015
外行人来欣赏艺术来了
看来码农也有码神啊 |
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5
hahastudio Aug 4, 2015
@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 |
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6
expkzb Aug 4, 2015
we could do these two on one line too, how?
意思不是把特指的两行变一行么 |
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7
minvacai Aug 4, 2015
cp from_file to_file #你够
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zyqf OP @hahastudio 我还以为有什么复杂的写法呢。。。。
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12
bububut Aug 4, 2015
楼主需提高阅读理解水平，没让你把所有代码变成一行
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13
leavic Aug 4, 2015
lambda（语句1 and 语句2 and 语句3）
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16
gamexg Aug 4, 2015 1
指的是这个？还是全部？
print 'Copying from %s to %s'%(__import__('sys').argv[1:]) |
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18
zhuangzhuang1988 Aug 6, 2015
再怎么复杂的代码都能 exec "from sys import argv;open(argv[2], 'w').write(open(argv[1]).read())"
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19
WKPlus Aug 6, 2015
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
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saber000 Aug 6, 2015
open(__import__("sys").argv[2], "wb").writelines(open(__import__("sys").argv[1]))
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21
goldalan Apr 23, 2016
from sys import argv;open(argv[2], 'w').write(open(argv[1]).read());print("Great")
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