复选框代码

Question

我有这个代码，如果是的话，将检查顶级复选框 它下面的复选框被选中。我还想做什么 如果在其下方没有选中复选框，则取消选中顶级复选框。我该怎么修改呢谢谢

if(this.parentElement == pg.thePart) {

            var terminate = false;
            var counter = 0;
        if(n.className == "myClass") {

                z = n.nextSibling;


                while(z.id == "row" && z.className != "myClass" && !terminate) {
                    z.all[0].checked = 0;
                    z.style.backgroundColor = z.className == "w" ? "ffffff" : "ffffcc";
                    counter++;
                    if(counter > 1000) terminate = true;
                    z = z.nextSibling;
                }
            } else {
                z = n;
                while (z.className != "myClass" && !terminate) {
                    z = z.previousSibling;
                    counter++;
                    if(counter > 1000) terminate = true;
                }
                if(counter > 0 && counter <= 1000) {

                    z.all[0].checked = 1;
                    z.style.backgroundColor = "bad3fc";
                }


            }


        }

Answer 1

您可以测试下面的那些，如果没有选中它们，请使用：

checkbox.checked = false;