Transmit NNN Corporation's quality requirements with quick and accurate information transmission.
以快捷，准确的信息传递传达NNN公司本部对产品的要求。
2
The three-digit octal (\nnn) and two-digit hexadecimal (\xnn) escapes represent individual bytes of the resulting string;
三位八进制数（\nnn） 和两位十六进制数（\xnn） 分别代表它们对应的字符的字节码；
3
If you keep your shell window open for extended periods, you can quickly repeat a previous command with! NNN, where NNN is the number shown in the prompt for the command.