suppress exception by exit(normal)
suppress exception by exit(normal)

zhangchaoeasemob/erl_tool,zhangchaoeasemob/erl_tool,zhuxiangkui/erl_tool,zhuxiangkui/erl_tool,zhuxiangkui/erl_tool,zhangchaoeasemob/erl_tool,zhangchaoeasemob/erl_tool,wcy123/erl_tool,wcy123/erl_tool,wcy123/erl_tool,wcy123/erl_tool,zhuxiangkui/erl_tool,zhuxiangkui/erl_tool,zhangchaoeasemob/erl_tool,wcy123/erl_tool