Colon is one of the commonly used punctuation marks in writing, which usually means pause after prompt, prompt below or summary above.
Extended data:
Function of colon:
1, used after salutation, means to mention the following.
For example, "comrades, let's have a meeting now." It often appears in letters and official documents. Some people often ignore this colon after the address form, which is easy to write as a comma.
2. After the words "say", "think", "yes", "prove", "announce", "for example" and "as follows", it indicates the following tips.
For example, he was surprised and said, "Ah, it's you!" However, when there are his original words before and after what someone said, then what someone said should be followed by a comma instead of a colon.
3. Used after the concluding remarks, it indicates that the following arguments are caused.
For example, "The Forbidden City in Beijing has four gates: the Wumen Gate, the Shenwumen Gate, the Donghuamen Gate and the Xihuamen Gate."
4, used after the words that need to be explained, indicating that it leads to explanation or explanation.
For example: "Title: Integrity." "Motto: not the best, but the closest."
5, used in front of the general discourse, summarize the above.
For example: "I can't figure it out, nine cows can't be pulled back;" After thinking for a moment, he didn't let anyone say anything, and went straight ahead: he was so straight-tempered. "