# 折叠面板 - order: 0 默认打开第二个面板。 --- ````jsx var Collapse = antd.Collapse; var Panel = Collapse.Panel; function callback(key) { console.log(key); } var text = ` A dog is a type of domesticated animal. Known for its loyalty and faithfulness, it can be found as a welcome guest in many households across the world. `; React.render(

{text}

{text}

{text}

, document.getElementById('components-collapse-demo-basic')); ````