---
order: 3
zh-CN:
	title: 外部方法控制轮播
en-US:
	title: Controlled by Instance Methods
---

```js
import { Swiper, Button } from 'zent';

const pages = [1, 2, 3, 4, 5];

class Simple extends React.Component {

	go = (index) => {
		this.swiper.swipeTo(index);
	}

	prev = () => {
		this.swiper.prev();
	}

	next = () => {
		this.swiper.next();
	}

	render() {
		return (
			<div className="swiper-demo-container no-flex">
				<Swiper
					ref={(swiper) => this.swiper = swiper}
					className="swiper-demo-simple"
				>
					{
						pages.map((item, index) => {
							return <div className="swiper-demo-simple-h" key={index}>{item}</div>;
						})
					}
				</Swiper>
				<div className="swiper-demo-btn-group">
					{
						pages.map((item, index) => {
							return (
								<Button
									key={index}
									type="primary"
									onClick={() => this.go(index)}
								>
									{item}
								</Button>
							);
						})
					}
					<Button
						type="primary"
						outline
						onClick={() => this.prev()}>
						prev
					</Button>
					<Button
						type="primary"
						outline
						onClick={() => this.next()}>
						next
					</Button>
				</div>
			</div>

		);
	}
}

ReactDOM.render(
	<Simple />
	, mountNode
);
```