我设置了不同的选择框，例如
"course 1" (with dates - May 01, June 01),
"course 2 (with dates - June 01, August 01)"
"course 3 (with dates - July 01, June 01)".
所以要求是如果用户选择"Course 1" and select "date - June 1"，然后如果用户选择"Course 2" or "course 3"，那么我必须将用户无法选择日期的逻辑放在"June 1 for course 2"和"course 3"因为用户已为"June 1"选择了"Course 1"。因此，用户只能为"August 01"选择"Course 2"，为"July 01"选择"Course 3"。
请参阅html代码
<select class="c1"><option value="May 01">May 01</option><option value="June 01">June 01</option></select>
<select class="c2"><option value="June 01">June 01</option><option value="Aug 01">Aug 01</option></select>
<select class="c3"><option value="June 01">June 01</option><option value="July 01">July 01</option></select>
那么有没有办法用JQuery实现呢？