中年人忙于生计，两个妹妹从幼儿园起的养育和教育，几乎都落在外公外婆身上。外公信奉“棍棒底下出孝子”，但凡没按照他的要求行事，甚至犟嘴，定会挨打。
1. 找出最大值max和最小值min
。一键获取谷歌浏览器下载对此有专业解读
if (!recordedEvent) {
But that’s a lot of resetting! We can save a bunch of bandwidth by instead tracking the current foreground and background color in our renderer and only emitting a new color escape sequence when our desired color changes. This is an annoying amount of bookkeeping but it substantially cuts down on the amount of escape codes emitted.