<!DOCTYPE html>
<html>
<head>
<title>test</title>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
</head>
<body>
<script>
function createSelect(s_id) {
var mySelect = document.createElement("select");
mySelect.id = s_id;
document.body.appendChild(mySelect);
}
function addOption(x_text, y_value, s_id) {
var obj = document.getElementById(s_id);
obj.add(new Option(x_text, y_value));
}
//清除select选项
function removeAll(s_id) {
var obj = document.getElementById(s_id);
obj.options.length = 0;
}
//清除指定的option
function removeOne(s_id, index) {
var obj = document.getElementById(s_id);
obj.options.remove(index);
}
//清除选中的option
function removeSelectOne(s_id) {
var obj = document.getElementById(s_id);
var s_index = obj.selectIndex;
obj.options.remove(s_index);
}
//获得选项option的value值 text值
function getValue(s_id) {
var obj = document.getElementById(s_id);
var s_index = obj.selectedIndex;
var s_value = obj.options[s_index].value;
var s_text = obj.options[s_index].text;
alert(s_value);
alert(s_text);
}
function edit(s_id, index, x_text, y_value ) {
var obj = document.getElementById(s_id);
obj.options[index] = new Option("x_text", "y_value");
}
function removeSelect(s_id) {
var mySelect = document.getElementById(s_id);
mySelect.parentNode.removeChild(mySelect);
}
createSelect("mySelect");
addOption("文本1", "值1", "mySelect");
addOption("文本2", "值2", "mySelect");
addOption("文本3", "值3", "mySelect");
createSelect("mySelect2");
addOption("文本1", "值1", "mySelect2");
addOption("文本2", "值2", "mySelect2");
addOption("文本3", "值3", "mySelect2");
// removeAll("mySelect2");
// removeOne("mySelect2",2);
// removeSelectOne("mySelect");
// getValue("mySelect");
// edit("mySelect",2);
// removeSelect("mySelect2")
</script>
</body>
</html>
时间： 2024-10-09 16:59:37