就是脚本回放一次是没有问题的，超过1次就出错了
Action.c(35): Error -27979: Requested form not found [MsgId: MERR-27979]
Action.c(35): web_submit_form("reservations.pl") highest severity level was "ERROR", 0 body bytes, 0 header bytes [MsgId: MMSG-26388]
不要和我说是Simulate a new user on each iteration，我去掉了勾也没用
Start Recording->options->recording->HTML Advances 把Script Type 选择 A script containing explicit URLs only (e.g web_url,web_submit_data).
然后重新录制再回放就没有问题了。