javascript - 取消选中功能不起作用

Question

看来我自己解决了这个问题~

以一种简单而愚蠢的方式：

复选框

var tab = document.getElementById("tbl"); 
var elems = tab.getElementsByTagName("input");
var len = elems.length;

for (var i = 0; i < len; i++) {
    if (tab.checked == elems.checked)
   {
        elems[i].checked = true;
   } 
}

取消选中所有框：

for (var i = 0; i < len; i++) {
    if (tab.checked == elems.checked)
   {
        elems[i].checked = false;
   } 
}

Answer 1

看来我自己解决了这个问题~~

复选框

var tab = document.getElementById("tbl"); 
var elems = tab.getElementsByTagName("input");
var len = elems.length;

for (var i = 0; i < len; i++) {
    if (tab.checked == elems.checked)
   {
        elems[i].checked = true;
   } 
}

}

取消选中所有框：

for (var i = 0; i < len; i++) {
    if (tab.checked == elems.checked)
   {
        elems[i].checked = false;
   } 
}

}