使用gets() 给出“没有这样的文件或目录";将参数传递给脚本时出错 [英] Using gets() gives "No such file or directory" error when I pass arguments to my script
问题描述
我正在练习一个简单的 ruby 脚本,我使用 gets.chomp
和参数制作表单,问题是当 gets.chomp
使用脚本返回当我应用参数 test
时出现错误.
代码:
#!usr/bin/ruby定义公式(奎恩)而 (1)打印[+] 字:"字 = 获取.chomp打印 quien + " -> " + word结尾结尾奎恩 = ARGV[0]公式(奎恩)
错误:
[+] Word : C:/Users/test/test.rb:8:in `gets': 没有那个文件或目录@rb_sysopen - test (Errno::E没有)来自 C:/Users/test/test.rb:8:in `gets'来自 C:/Users/test/test.rb:8:in `formulario'来自 C:/Users/test/test.rb:17:in `<main>'
有人可以帮忙吗?
看起来您希望用户通过从 STDIN
读取一行来输入一些输入,最好的方法是通过调用 STDIN.gets
而不是 gets
.所以你的线路变成:
word = STDIN.gets.chomp
这被记录为IO.gets
.STDIN
是 IO
的一个实例.
现在,您正在执行 Kernel.gets
,它做了一些不同的事情(强调我的):
从ARGV 中的文件列表(或$*)或从标准输入返回(并分配给$_)下一行,如果没有文件存在在命令行上.
如果 ARGV
为空,这 似乎 的行为类似于 STDIN.gets
,但不是同一件事,因此会造成混淆.>
Hi I am making a simple ruby script practiced where I make a form using gets.chomp
and arguments, the problem is that when gets.chomp
use the script returns me an error when I apply the argument test
.
The code:
#!usr/bin/ruby
def formulario(quien)
while (1)
print "[+] Word : "
word = gets.chomp
print quien + " -> " + word
end
end
quien = ARGV[0]
formulario(quien)
The error:
[+] Word : C:/Users/test/test.rb:8:in `gets': No such file or directory @ rb_sysopen - test (Errno::E
NOENT)
from C:/Users/test/test.rb:8:in `gets'
from C:/Users/test/test.rb:8:in `formulario'
from C:/Users/test/test.rb:17:in `<main>'
Can anyone help?
It looks like you want to the user to type some input by reading a line from STDIN
, the best way to do this is by calling STDIN.gets
and not gets
. So your line becomes:
word = STDIN.gets.chomp
This is documented as IO.gets
. STDIN
is an instance of IO
.
Right now, you're executing Kernel.gets
, which does something different (emphasis mine):
Returns (and assigns to $_) the next line from the list of files in ARGV (or $*), or from standard input if no files are present on the command line.
This appears to behave like STDIN.gets
if ARGV
is empty, but is not the same thing, hence the confusion.
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