| ## zh-CN | |
| 更复杂的例子，自定义了页脚的按钮，点击提交后进入 loading 状态，完成后关闭。 | |
| 不需要默认确定取消按钮时，你可以把 `footer` 设为 `null`。 | |
| ## en-US | |
| A more complex example which define a customized footer button bar. The dialog will change to loading state after clicking the submit button, and when the loading is done, the modal dialog will be closed. | |
| You could set `footer` to `null` if you don't need default footer buttons. | |