同时滚动2个不同的元素

Question

如果我有一个textarea元素和一个div元素我怎么能一次滚动它们？(当我滚动textarea我想要div做同样的事情)

我想使用纯javascript,尽可能简单的代码.

TY.

Answer 1

如下所述:在多个选择框中同步两个滚动条

var s1 = document.getElementById('Select1');
var s2 = document.getElementById('Select2');

function select_scroll_1(e) { s2.scrollTop = s1.scrollTop; }
function select_scroll_2(e) { s1.scrollTop = s2.scrollTop; }

s1.addEventListener('scroll', select_scroll_1, false);
s2.addEventListener('scroll', select_scroll_2, false);