以下是我所拥有的...
<html>
<body>
<form name="myForm">
<select name="myOption" multiple>
<option value="0">0</option>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
<option value="8">8</option>
</select>
<BR><BR>
<input type=submit value="Print First" onClick="printMe()">
<input type=submit value="Print All" onClick="printAll()">
</body>
<script>
function printMe() {
alert ("Selected option is " + myForm.myOption.value);
}
function printAll() {
var str = "";
// what should I write here??
alert("Options selected are " + str);
}
</script>
</html>
请让我知道我应该用
printAll()
写什么,以便可以打印所有选择的值...我知道如何打印第一个选择的值... 最佳答案
这个怎么样??
function printAll() {
var str="",i;
for (i=0;i<myForm.myOption.options.length;i++) {
if (myForm.myOption.options[i].selected) {
str = str + i + " ";
}
}
alert("Options selected are " + str);
}
祝好运!!!
关于javascript - 显示多个下拉列表的所有选定值,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/9239523/