更新时间：2022-03-12 09:38:03
事实证明，这是一个错误，可能与混合评估程序有关： https://github.com/tidyverse/dplyr/issues/3422
As it turns out, this is a bug, probably related to the hybrid evaluator: https://github.com/tidyverse/dplyr/issues/3422
dplyr :: case_when评估错误：未找到对象“ x”
