Internet出现之前,@符号在英文中有两种意思,即“在”或“单价”,它的前一种意思的发音类似于英文at,于是被作为“在”的代名词来使用;另外,它也用来表示商品的单价。美国一位电脑工程师汤林森赋予了@以新意,并确立了@在E-mail中的地位。为了让用户方便地在网络上收发电子邮件, Before the advent of the Internet, the @ symbol had two meanings in English: “in” or “unit price”, the former meaning of which was phonetically similar to English at, and was therefore used as a synonym for “in”; in addition, it Also used to indicate the unit price of goods. Tom Linsen, a computer engineer in the United States, gave @ a new idea and established @ his position in E-mail. In order to allow users to easily send and receive e-mail on the network,