React-keeper的使用方法（坑多）

$ npm i react-keeper --save

import { HashRouter,Route,Link } from 'react-keeper'

 <div>
       {/*路由容器  */}
    <HashRouter>
         <div>
            <Route cache path="/" exact component = {Index} />
               <Route path="/say"  component = {Say} />
                <Route path="/picture"  component = {Picture} />
                <Route path="/me"  component = {Me} />
                <Route path="/bookInfo"  component = {bookInfo} />   
                {/* // 菜单栏  */}
              <div className="menu">
                    <ul>
                        <li><Link to="/">文章</Link></li>
                        <li><Link to="/say">心情</Link></li>
                        <li><Link to="/picture">照片墙</Link></li>
                        <li><Link to="/me">关于我</Link></li>
                    </ul>
                </div>
         </div>
     </HashRouter>
  </div>
cache属性可以添加属性值，React-Keeper支持的属性值有root（default）、parent。
cache='root'（或cache）为永久缓存，只要根组件不解绑，页面将永久缓存。
cache='parent'为父组件缓存，在父组件不解绑的情况下会维持缓存状态。

import { Control } from 'react-keeper'

Control.go(-1)

 Control.go("bookInfo",{ID:ID})

Control.state.ID

 this.props.history.push({
             pathname:"bookInfo",
             query:{ID:ID}
      })

this.props.location.query.ID