What symbol is behind the SMS address?

You can add a comma or colon after the short message address. Generally speaking, a comma is used after the address to show respect for the other party, and a colon can also be used, but the colon is generally used in formal occasions or written language. Commas are more common in informal situations or daily communication.

For example, when sending a message to a friend, you can use "Hey, Xiao Ming, how's it going?" Such a statement; When sending text messages to superiors or elders, you can use "Dear Manager Zhang, I wish you all the best." In this expression, "respect" can be used to show respect and politeness.

In short, when choosing to use commas or colons, we should choose the appropriate symbols according to the occasion and the communication object.