#JSRUN引擎2.0,支持多达30种语言在线运行,全仿真在线交互输入输出。 aa = [1,2,3] puts aa aa = [1, 2, 3, 4] puts aa str = "Hellv wvrld" puts str.object_id.to_s # 47114104339700 str = "hahahhahah" puts str.object_id.to_s # 47114104339600