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char digraph hex dec official name 解释 转义符
^@ NU 0x00 0 NULL (NUL) 空字符
^A SH 0x01 1 START OF HEADING (SOH) 标题开始
^B SX 0x02 2 START OF TEXT (STX) 正文开始
^C EX 0x03 3 END OF TEXT (ETX) 正文结束
^D ET 0x04 4 END OF TRANSMISSION (EOT) 传输结束
^E EQ 0x05 5 ENQUIRY (ENQ) 请求
^F AK 0x06 6 ACKNOWLEDGE (ACK) 回应/响应/收到通知
^G BL 0x07 7 BELL (BEL) 响铃 a
^H BS 0x08 8 BACKSPACE (BS) 退格 b
^I HT 0x09 9 CHARACTER TABULATION (HT) 水平制表符 t
^@ LF 0x0a 10 LINE FEED (LF) 换行键 n
^K VT 0x0b 11 LINE TABULATION (VT) 垂直制表符 v
^L FF 0x0c 12 FORM FEED (FF) 换页键 f
^M CR 0x0d 13 CARRIAGE RETURN (CR) 回车键 r
^N SO 0x0e 14 SHIFT OUT (SO) 不用切换
^O SI 0x0f 15 SHIFT IN (SI) 启用切换
^P DL 0x10 16 DATALINK ESCAPE (DLE) 数据链路转义
^Q D1 0x11 17 DEVICE CONTROL ONE (DC1) 设备控制1/传输开始
^R D2 0x12 18 DEVICE CONTROL TWO (DC2) 设备控制2
^S D3 0x13 19 DEVICE CONTROL THREE (DC3) 设备控制3/传输中断
^T D4 0x14 20 DEVICE CONTROL FOUR (DC4) 设备控制4
^U NK 0x15 21 NEGATIVE ACKNOWLEDGE (NAK) 无响应/非正常响应/拒绝接收
^V SY 0x16 22 SYNCHRONOUS IDLE (SYN) 同步空闲
^W EB 0x17 23 END OF TRANSMISSION BLOCK (ETB) 传输块结束/块传输终止
^X CN 0x18 24 CANCEL (CAN) 取消
^Y EM 0x19 25 END OF MEDIUM (EM) 已到介质末端/介质存储已满/介质中断
^Z SB 0x1a 26 SUBSTITUTE (SUB) 替补/替换
^[ EC 0x1b 27 ESCAPE (ESC) 逃离/取消
^ FS 0x1c 28 FILE SEPARATOR (IS4) 文件分割符
^] GS 0x1d 29 GROUP SEPARATOR (IS3) 组分隔符/分组符
^^ RS 0x1e 30 RECORD SEPARATOR (IS2) 记录分离符
^_ US 0x1f 31 UNIT SEPARATOR (IS1) 单元分隔符
