完整的错误信息是：
Cannot update during an existing state transition (such as within render or another component's constructor). Render methods should be a pure function of props and state; constructor side-effects are an anti-pattern, but can be moved to componentWillMount.

然后就陷入了死循环，不停的error，界面卡死，卧槽真牛逼啊。

后来发现原来是一不小心在render里执行了一个函数，本来应该是：

onClick: () => this.handleEditClick()

写成了：

onClick: this.handleEditClick()