# 动态展示 - order: 4 会动的进度条才是好进度条。 --- ````jsx var Progress = antd.Progress.Line; var MyProgress = React.createClass({ getInitialState() { return { percent: 0 }; }, componentDidMount: function() { var self = this; setInterval(function() { if (self.state.percent < 100) { self.state.percent += 4; } self.setState({ percent: self.state.percent }); }, 200); }, render() { return ; } }); React.render( , document.getElementById('components-progress-demo-dynamic')); ````