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.
这种安全感，是技术工具无法替代的软性赋能。
。业内人士推荐safew官方版本下载作为进阶阅读
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const realIdx = i % len; // 取模映射到真实数组索引，模拟循环