A control character that indicates that the message heading begins with the following character.
A control character that indicates that the message heading begins with the following character.
一种控制字符，指出报头从后面的字符开始。StartOfHeading的缩写。
A control character that indicates that the message heading begins with the following character.
一种控制字符，指出报头从后面的字符开始。StartOfHeading的缩写。