// 当前元素入栈：成为「左侧元素」的候选更大值（易错点4：别漏写这一步）
The 3614/3624 series established a number of conventions that are still in use
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1. 什么是激活函数，为什么需要激活函数
Beagle Bros’ tools were fantastic. They literally let you do the (allegedly) impossible, like change the names of operating system commands. And they always packed the disks full with extra stuff. Demos of their other products, and strange graphics hacks that existed for no reason other than the fact that they were cool, and because there was spare room on the disk. Beagle Bros. had a lot to do with why I ever wanted to learn programming in the first place. […]