U0001210.30.206.181:380 / U0002 2025 Specifications

U0001210.30.206.181:380 / U0002 2025 Specifications. U+0002 is the unicode hex value of the character (stx). It belongs to the common script and is a control.

正则和js中的一样, 将 xxxx 转换以16进制 system.globalization.numberstyles.hexnumber 解析为 short 类型, 然后直接 (char)c 就能转换成对应的字符, + (char)c 用于转换成字符串类型返. The  (start of text) and  (end of text) characters.