<!DOCTYPE html> <html> <head> <script src="../build/react.js"></script> <script src="../build/react-dom.js"></script> <script src="../build/browser.min.js"></script> </head> <body> <div id="example"></div> <script type="text/babel"> var LikeButton = React.createClass({ getInitialState: function(){ return { count: 60, liked: true }; }, handleClick: function(){ if(this.state.liked){ this.timer = setInterval(function () { var count = this.state.count; this.state.liked = false; count -= 1; if (count < 1) { this.setState({ liked: true }); count = 60; } this.setState({ count: count }); }.bind(this), 1000); } }, render: function(){ var text = this.state.liked ? '获取验证码' : this.state.count + '秒后重发'; return( <p> <button onClick={this.handleClick}>{text}</button> </p> ) } }) ReactDOM.render( <LikeButton />, document.getElementById('example') ) </script> </body> </html>