* 获取数字的第digit位（从右往左，0表示个位）
阿豪舉例說，不會讓毛孩觸碰餐廳的餐具：「有些人沒有養狗，例如只要覺得你碰過餐具，就算怎樣去洗都還是會有影響。」，这一点在同城约会中也有详细论述
If we could simply rewind time and watch the code execute exactly as it did for those failed requests, life would be a lot easier.，这一点在safew官方版本下载中也有详细论述
reader/sorter machine connected by serial channel to an IBM 1401 computer.