更准确的说,是两个radio,选中一个隐藏<select>,点另一个则显示。<input type=radio name=a value=1>a
<input type=radio name=b value=2>b
提示:<select name=b>
<option value=1>1</option>
<option value=2>2</option>
</select>
<input type=radio name=b value=2>b
提示:<select name=b>
<option value=1>1</option>
<option value=2>2</option>
</select>
<input type=radio name=a value=2 onclick="document.all('b').style.display=''">b
提示:<select name=b>
<option value=1>1</option>
<option value=2>2</option>
</select>
<input type=checkbox name=a value=1
onclick="document.form1.b.style.display=(this.checked)?'none':''">a
提示:<select name=b>
<option value=1>1</option>
<option value=2>2</option>
</select>
</form>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>无标题文档</title>
</head><body>
<input type=radio id=a name=a value=1 onClick="form1.style.display='none'"><label for="a">a</label>
<input type=radio id=b name=a value=2 onClick="form1.style.display='inline'"><label for="b">b</label>
<form id=form1 style="display:none">
提示:<select name=b>
<option value=1>1</option>
<option value=2>2</option>
</select>
</form>
</body>
</html>
把我的要求改一下来实现也可以:
显示或隐藏一个表格的行:<tr>,可以实现吗?