ant-design/components/progress/demo/dynamic.md

---
order: 4
title: 动态展示
---

会动的进度条才是好进度条。



````jsx
import { Progress, Button, Icon } from 'antd';
const ProgressLine = Progress.Line;
const ButtonGroup = Button.Group;

const MyProgress = React.createClass({
  getInitialState() {
    return {
      percent: 0
    };
  },
  increase() {
    let percent = this.state.percent + 10;
    if (percent > 100) {
      percent = 100;
    }
    this.setState({ percent });
  },
  decline() {
    let percent = this.state.percent - 10;
    if (percent < 0) {
      percent = 0;
    }
    this.setState({ percent });
  },
  render() {
    return (
      <div>
        <ProgressLine percent={this.state.percent} />
        <ButtonGroup>
          <Button type="ghost" onClick={this.decline}>
            <Icon type="minus" />
          </Button>
          <Button type="ghost" onClick={this.increase}>
            <Icon type="plus" />
          </Button>
        </ButtonGroup>
      </div>
    );
  }
});

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