hello worldxingoo@xingoo-Lenovo:~/workspace/RubyTest$ irb
irb(main):001:0> p "hello"
"hello"
=> "hello"
irb(main):002:0> p "中文hello"
"中文hello"
=> "中文hello"
irb(main):003:0> eixt

使用ruby命令执行

xingoo@xingoo-Lenovo:~/workspace/RubyTest/KittyRuby$ ruby hello.rb 
hello world

hello.rb中的内容：

print "hello world"