好像国内还没看到类似的文章。。。其实个人觉得eagle还挺好用的。。。至少当时一下午就上手了。。。都是从国外的网站粘回来的，看动图和图注就好。

1 循环切换层

Normally, you use the mouse’s left-click to select an object (whether it’s a trace, via, part, etc.), but when there are two parts overlapping exactly where you’re clicking, EAGLE doesn’t know which one you want to pick up. In cases like that, EAGLE will pick one of the two overlapping objects, and ask if that’s the one you want. If it is, you have to left-click again to confirm. If you were trying to grab one of the other overlapping objects, right-click to cycle to the next part. EAGLE’s status box, in the very bottom-left of the window, provides some helpful information when you’re trying to select a part.

网上看到的一些技巧

Let's say you've drawn a power polygon, like VCC or GND, and now you need to change some routes. Polygons become very annoying in this case because whenever you hit RATSNEST, a polygon will fill the PCB again.

You can keep working without polygons until you want to enable them again. Without deleting them, you can just turn them on or off as you like.

To turn polygons off, select ripup tool, ripup polygon, then write this command:

set poly off

To turn them on, type this command:

set poly on

要先选中拆解信号的工具，然后输入指令，然后再点覆铜才可以

When you select the text tool, you write your sentence in the pop-up window and then drop it wherever you want. But what if you want to add more?

In this case, just write down your sentence and hit enter without needing to select the text tool icon again.

When you select the text tool, you write your sentence in the pop-up window and then drop it wherever you want. But what if you want to add more?

In this case, just write down your sentence and hit enter without needing to select the text tool icon again.

Hit RATSNEST to Know How Many Signals Are Still Unrouted

You can change the wire width without going to the width menu! Just write the width number and hit enter while you're holding the wire.

The most annoying signal that contributes to a feeling of incompleteness and complexity is the GND signal.

You could hide it, or any other signal, by using the RATSNEST command in this form:

ratsnest !

For example:

ratsnest ! GND

To make it visible again just omit ‘!’:

ratsnest GND

You can change the wire width without going to the width menu! Just write the width number and hit enter while you're holding the wire.

在eagle 9 里面的新功能

引出bus上所有的信号线

引出芯片上所有引脚的信号

把所有的引脚连接到bus上

这四个功能都很强大

自动布一个鼠线

优化已有的线

eagle 8.5的新功能

布线时激活Push ObstaPush Obstacles cles 功能可以推动已有的信号线

eagle 8.1 的新功能

手工布线的时候这个功能挺有用的