I found one dumb free win (I mistakenly used value receivers on a utility function called on a large struct thousands of times a frame). But the rest of the speedups I found took more effort.
self.published = published
，更多细节参见WPS官方版本下载
Take a look under the hood.
所以从入学到期末，每个月班里都会发一张全勤奖状，每次都有她，她每次拿到奖状也非常高兴，这也算是对她坚持上幼儿园的肯定吧。
// 易错点2：漏写stack.length判断 → 栈空时访问stack[-1]会报错