javascript,DOM,复选框,选择本文实例讲述了javascript中DOM复选框选择用法。分享给大家供大家参考。具体如下： <html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>复选框全选全清和反选</title><script type="text/javascript">//取得所有的复选框对象数组function GetAllCheckBox() { var div = document.getElementById("Balls"); var inputs = div.getElementsByTagName("input"); //定义复选框数组，用来返回 var checkboxs = new Array(); var nIndex = 0; for (var i = 0; i < inputs.length; i++) { //通过type是否为checkbox来判断复选框 if (inputs[i].type == "checkbox") { checkboxs[nIndex] = inputs[i]; nIndex++; } } return checkboxs;}//全选function selAll() { var checkboxs = GetAllCheckBox(); for (var i = 0; i < checkboxs.length; i++) { checkboxs[i].checked = true; }}//全清function clearAll() { var checkboxs = GetAllCheckBox(); for (var i = 0; i < checkboxs.length; i++) { checkboxs[i].checked = false; }}//反选function reverseAll() { var checkboxs = GetAllCheckBox(); for (var i = 0; i < checkboxs.length; i++) { if (checkboxs[i].checked == true) { checkboxs[i].checked = false; } else { checkboxs[i].checked = true; } }}</script></head><body><div id="Balls"><input type="checkbox" id="c1" /><label for="c1">足球</label><input type="checkbox" id="c2" /><label for="c2">台球</label><input type="checkbox" id="c3" /><label for="c3">乒乓球</label><br /><input type="button" value="全选" onclick="selAll()" /><input type="button" value="全清" onclick="clearAll()" /><input type="button" value="反选" onclick="reverseAll()" /></div></body></html>希望本文所述对大家的javascript程序设计有所帮助。
javascript,DOM,复选框,选择
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