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js多兼容全选/反选代码



<script language="javascript教程"> 
function Choose(sel, arg) //传递2个参数，分别是表名,选择参数(全/反选)
{
    var objtb = document.getElementById(sel);
    var num = objtb.getElementsByTagName("input");

    for (i = 0; i < num.length; i++) {
        if (num[i].tagName == "INPUT") {
            if (arg == true) {
                num[i].checked = true
            }
            else {
                if (num[i].checked == true) {
                    num[i].checked = false;
                }
                else if (num[i].checked == false) {
                    num[i].checked = true;
                }
            }
        }
    }
}
</script>

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