如何检测ReactJSonKeyPress事件中的“Shift+Enter”？这可能吗？https://jsfiddle.net/jacobgoh101/cyLqfcts/3/classAppextendsReact.Component{constructor(props){super(props);this.handleKeyPress=this.handleKeyPress.bind(this);}handleKeyPress(e){console.log(e.key);$('#app').append(""+e.key);}render(){return();}}ReactDOM