The character used to denote the startofline assertion.
用于判断行开始的字符。
2
For example, with the cursor at the startofline 4 in Listing 9, you would type
例如，把游标放在 清单 9 中第 4 行的开头，按 Escape，然后输入
3
While the efforts are certainly not futile, the results of such bans will likely only start to be seen by generations down the line, bettering the world for the future.