Most ergonomic keyboard layouts fall into two categories: unibody (or Alice) and split. The former is a single board with the two halves of the keys rotated about 30 degrees apart at the bottom. The separation forms an A-shaped space between the keys — which has nothing to do with why it’s called an Alice layout, it’s just a happy coincidence. This subtle tweak pushes your elbows away from your ribs while keeping a straight line from your forearm to your middle knuckle. Using one, I pretty instantly felt more open along the front side of my body. This layout more closely resembles a traditional keyboard, so it should be easier for most folks to get used to than a fully split option.
本质上，基于 AppFunctions 的实现方式，和过去的 API 路径逻辑相同。这是一种「打好了招呼」的解题思路。，这一点在搜狗输入法2026中也有详细论述
圖像來源，US House Oversight Committee，详情可参考51吃瓜
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