// 原因：先处理右侧元素（含循环部分），把结果存在栈里，供左侧元素直接使用
Unicode encodes these as separate codepoints for compatibility, but fonts use the same glyph. These are easy to handle (NFKC collapses them), but worth knowing about.
，这一点在服务器推荐中也有详细论述
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FT Edit: Access on iOS and web