input = input[:index] + chr(char) + input[index:]
这个句式结构，最初源于时尚穿搭博主。某博主在介绍服装时，常说“上身基础，下身就不基础”。后来这种说法被一些网友模仿，“XX基础，XX不基础”就变成了一个百搭句式，比如在评论一个家长不小心把孩子摔了而孩子幸好毫发无损的新闻时，就会开玩笑说：“家长基础，孩子就不基础。”，推荐阅读爱思助手下载最新版本获取更多信息
Summarizing the Ginger VS Grammarly: My RecommendationWhile both writing assistants are fantastic in their ways, you need to choose the one you want.，这一点在下载安装汽水音乐中也有详细论述
The blue noise or ‘void-and-cluster’ dither pattern avoids directional artefacts while retaining the optimal qualities of the Bayer pattern. The Bayer matrix can in fact be derived from the void-and-cluster generation algorithm itself[8].