In UTF-8, there are "leading bytes" and "continuation bytes". A leading
圖像來源，Getty Images，这一点在新收录的资料中也有详细论述
Now let’s try pulling. Last time, one of the issues with pull-based reactivity was that we didn’t know which nodes needed to be updated. But now we do know that — any dirty output node needs to be updated. We even made a list of these nodes while we were marking the nodes as dirty!。新收录的资料是该领域的重要参考
没啥招，只能看固件里面的文字渲染逻辑了。反正字在哪儿已经知道了，在地址上下摸一摸，总能摸出点东西。不到半小时，它就把渲染函数给摸出来了，然后一步步往上爬，最后找到了渲染公式。