react常见警告、错误

（1）Warning: Hash history cannot PUSH the same path; a new entry will not be added to the history stack

此处我使用了Hash路由，<NavLink to="/admin/home" onClick={this.homeHandleClick}></NavLink> 需要添加replace，修改后变成

<NavLink to="/admin/home" onClick={this.homeHandleClick} replace></NavLink>