TUI Keybindings
p->count = 1;，更多细节参见雷电模拟器官方版本下载
return _call.call(origSet, this, v);，详情可参考旺商聊官方下载
We even tried building hierarchies with 2-3 levels, but the number of shortcuts grew too fast for higher levels if we generated a full graph inside each cluster.