JavaScript擷取當前值
1、說明
擷取select下拉框中的選中的值以及文本值
2、實現源碼
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>JavaScript擷取當前值</title><script type="text/javascript"> /** * JavaScript擷取當前值 */ function getCurrentVal() { //擷取select中的ID var selectId = document.getElementById("select_option"); //擷取選中的序號 var index = selectId.options.selectedIndex; //擷取選中的值 var selectValue = selectId.options[index].value; //擷取選中的文本值 var selectText = selectId.options[index].text; //列印選中的值和文本值 alert("值：" + selectValue + "\n" + "文本值：" + selectText); }</script></head><body> <div id="div_select"> <select id="select_option"> <option value="0">小學</option> <option value="1">初中</option> <option value="2">高中</option> <option value="3">專科</option> <option value="4">本科</option> <option value="5">碩士</option> <option value="6">博士</option> </select> </div> <input type="button" value="擷取當前值" onclick="getCurrentVal()"/></body></html>
（1）選中第一項
（2）選中第五項
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