13-7.htm
来自「这是一些关于JavaScript的学习资料 希望对大家有用」· HTM 代码 · 共 32 行
HTM
32 行
<html>
<head>
<script language="javascript">
function lisongtao()
{
var orderstring=""
var n=document.dinner.entries.length
for(i=0;i<n;++i)
{
if(document.dinner.entries.options[i].selected)
{
orderstring=document.dinner.entries.options[i].value
}
}
document.dinner.summary.value=orderstring
}
</script>
</head>
<body>
<form name="dinner">
<select name="entries" size="4" onchange="lisongtao()">
<option value="HOT DOG"> hot dog </option>
<option value="chicken sandwich">chicken sandwich</option>
<option value="frenck fries">frenck fries</option>
<option value="Onion rings">onion rings</option>
<option value="milk shake">milk shake </option>
</select>
<textarea name="summary" rows="4" cols="40"></textarea>
</form>
</body>
</html>
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