如何在ruby中打印没有换行的东西

Question

在ruby中的puts语句自动添加一个新行，我该如何避免呢？

Answer 1

Use print instead. You may want to follow it up by STDOUT.flush .

Answer 2

此外，您需要在行尾添加“\\ r”以指示“回车”并在当前行的开头执行下一次打印

Answer 3

$stdout.sync = true

100.times do
    print "."
    sleep 1
end

"How can I use “puts” to the console without a line break in ruby on rails?"