what about 意思为“做什么事情如何，怎么样？”about 为介词，介词后面接动词的话，只能用动词ing形式。类似的用法还有look forward to doing sth.
what about后面接动词ing,因为about是介词
貌似是what about doing sth的句型，about后不能直接接动词原型吧
about是介词，后跟名词
