每次点击将1添加到zIndex

Question

我正在尝试这样做，因此每次单击都会在zIndex上加1，因此就像101、102、103 ...

st[0].onclick = function () {

        var z = 100;
        document.getElementById(current).style.display = "block";
        document.getElementById(current).style.zIndex = z++;
        current = state;
    };

Answer 1

将z移出函数。

var z = 100;

st[0].onclick = function () {
        document.getElementById(current).style.display = "block";
        document.getElementById(current).style.zIndex = z++;
        current = state;
    };