在命令行中运行下面命令,-e的意思是,把后面的字符串当作脚本执行
ruby -e "print 'hello'"
在命令行输入irb
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
xingoo@xingoo-Lenovo:~/workspace/RubyTest/KittyRuby$ ruby hello.rb
hello world
hello.rb中的内容:
print "hello world"