psy438/groupby_selector_for_pyppeteer-

lable(name):selector[->]lable(name):selector[->]lable(name):selector[|]lable(name):selector[->]lable(name):selector[->]lable(name):selector 每一个selector前都要含有一个标签lable(name),[->]表示逐层查找,[|]表示或。

新增了一种按图论方式的groupby