适应于对各种问卷调查结果进行统计使用，除了导出统计结果外还保留每一张问卷调查表的结果，以便返回检查或修改；还可对每一次问卷调查对应的文档进行密码保护，可以设置打开权限密码和修改权限密码两级密码保护。 -Adapted to also keep every one of the results of the questionnaire, in addition to the export statistics on a variety of survey results were statis