I have the following code that I want to use to ping IP addresses and write to a file. It all works fine, except I can't get it to write to the file.
我有以下代码，我想用来ping IP地址和写入文件。一切正常，除了我无法写入文件。
server = %w'192.168.150.254
192.168.150.251
192.168.120.1
192.168.120.2'
File.open('/test/test2.out','w') do |s|
server.each do |p|
r = `ping -a -n 1 #{p}`
puts r
end
end
1 个解决方案
#1
31
Change puts r to s.puts r. You're writing to stdout instead of to s. (See Kernel#puts and IO#puts)
更改将r放入s.puts r。你写的是stdout而不是s。 （参见Kernel＃puts和IO＃puts）
#1
31
Change puts r to s.puts r. You're writing to stdout instead of to s. (See Kernel#puts and IO#puts)
更改将r放入s.puts r。你写的是stdout而不是s。 （参见Kernel＃puts和IO＃puts）