1.可自行设定调查项目数(数目不限) -可在setupvote.cs中的 vote_num=\"10\" 中更改 2.有单选项和多选项两种方式 3.采用本站提供的Dundas Chart图形组 -1. Can set their own research project (the number of open-) - setupvote.cs in the v ote_num = "10" two changes. have more options