The easiest possible system is that we just re-run everything. Going back to our spreadsheet, every time we update a cell, we go through every cell in the sheet and calculate its value fresh. When a cell references another cell (e.g. =B8), we first calculate the value of the dependency, then carry on calculating the initial cell’s value. Eventually, we will recursively have updated every cell in the sheet.
18:10, 10 марта 2026Из жизни
，详情可参考新收录的资料
雨停了，夕阳穿透云层，照在巴斯 honey-colored 的石头上。我忽然明白，为什么两个世纪后，我们依然在读简·奥斯汀。因为在这个喧嚣、浮躁、充满不确定性的世界里，她教会了我们一种最珍贵的能力：在有限的生活里，保持清醒的头脑，和一颗不被驯服的心。
**Avoid patterns like:**