add common/ping_redis2.erl
add common/ping_redis2.erl

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