NTVjs
NTVjs原始讲解+修改
从'react'导入React，{组件}; 从'react-keydown'导入keydown;
导出默认类菜单扩展组件{
this.state = {
}
}
componentWillMount（）{
}
componentDidMount（）{
}
redner（）{// const {// levelState //} = this.state // const {currentGameLevel} = levelState;
return (
<div>
<p>Hello World</p>
</div>
)
}
componentWillReceiveProps（）{
}
componentDidUpdate（）{
}
componentWillUnmount（）{
}
}
