我如何使用“id”仅应用禁用/启用按钮,如果只有第二个按钮被点击复选框,因为我需要它来打开和关闭取决于if点击复选框。凡为第一个按钮将永远是第二提交按钮的只适用于一个输入按钮
http://jsfiddle.net/BPhZe/2122/
<h1>Button should be enabled if at least one checkbox is checked</h1>
<form>
<div>
<input type="checkbox" name="option-1" id="option-1"> <label for="option-1">Option 1</label>
</div>
<div>
<input type="checkbox" name="option-2" id="option-2"> <label for="option-2">Option 2</label>
</div>
<div>
<input type="submit" id="sub1" value="Do thing">
</div>
<div>
<input type="checkbox" name="here" id="option-12"> <label for="option-2">Option 3</label>
</div>
<div>
<input type="checkbox" name="now" id="option-22"> <label for="option-2">Option 4</label>
</div>
<div>
<input type="submit" id="sub2" value="Do thing" disabled="true">
</div>
</form>
var checkboxes = $("input[type='checkbox']"),
submitButt = $("input[type='submit']");
checkboxes.click(function() {
submitButt.attr("disabled", !checkboxes.is(":checked"));
});
感谢您的回答! – John 2015-03-31 09:52:47
@John不客气:)请接受我的asnwer :) – 2015-03-31 09:53:31