html
---
<label id="cardNumber-label">Card Number</label>
<div id="number-container" class="form-control"></div>
<label for="securityCode-container">Security Code</label>
<div id="securityCode-container" class="form-control"></div>
--
</div>
<div class="form-row">
----
</form>
JS
var flex = new Flex(captureContext);
var microform = flex.microform({ styles: myStyles });
var number = microform.createField('number', { placeholder: 'Enter card number' });
var securityCode = microform.createField('securityCode', { placeholder: '•••' });
number.load('#number-container');
securityCode.load('#securityCode-container');
参考:开发者指南