The following two blocks are your problem, they both respond to a click on any li(下面的两个块是你的问题，他们对任何一个点击皆响应li)
$(document).on('click','li',function()
{
$('#studentname').val($(this).text());
$('#students').fadeOut();
});
$(document).on('click','li',function()
{
$('#groupname').val($(this).text());
$('#groups').fadeOut();
});
You need to adjust your selectors to target the respective lists as follows:(您需要按以下方式调整选择器以定位相应的列表：)
$(document).on('click','#students li',function()
{
$('#studentname').val($(this).text());
$('#students').fadeOut();
});
$(document).on('click','#groups li',function()
{
$('#groupname').val($(this).text());
$('#groups').fadeOut();
});
Or like this:(或像这样：)
$('#students').on('click','li',function()
{
$('#studentname').val($(this).text());
$('#students').fadeOut();
});
$('#groups').on('click','li',function()
{
$('#groupname').val($(this).text());
$('#groups').fadeOut();
});
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