<select name="slt" id="slt">
<option> option 1</option>
<option> option 2</option>
<option> option 3</option>
</select>
<input type="button" value="disable" onclick="slt.disabled = true">
<input type="button" value="enable" onclick="slt.disabled = false">
<option> option 1</option>
<option> option 2</option>
<option> option 3</option>
</select>
<input type="button" value="disable" onclick="slt.disabled = true">
<input type="button" value="enable" onclick="slt.disabled = false">
解决方案 »
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