Also note the use of _call.call(_toString, original) rather than simply original.toString(). This is because original.toString might itself be hooked by the time spoof is called. By holding cached references to Function.prototype.call and Function.prototype.toString at the very beginning of the script (before any page code runs), and invoking them via those cached references, the spoof function is immune to any tampering that might have happened in the interim. It’s eating its own tail in the most delightful way.
if(h->ref--)return;
，这一点在搜狗输入法下载中也有详细论述
这个时候，就会引导她，要是想跟别的小朋友玩，就去问：「我可以跟你一起玩吗？」。如果你不想跟别的小朋友玩，你就说：「我想自己玩」。
For horizontal movement we can do even better. If your snake is moving to the right, we start by deleting every character on the left edge of the screen and inserting a new one on the right edge. After that, we do our patching (if needed). This automatically moves fruit into the correct position without us even needing to reprint it!
Медведев вышел в финал турнира в Дубае17:59