Punctuation marks are divided into three categories: dots, marks, and symbols. Dots represent pauses of different lengths in spoken language, and marks represent the nature or function of words in written language.
Periods: period (.), question mark (?), exclamation mark (!), comma (,), comma (,), semicolon (;) and colon (:).
Marks: quotation marks (" " ' '), brackets [( ) [ ] { } ], dash (──), ellipsis (······), emphasis mark (.), book title number ( " 》〈 〉), spacer (·), hyphen (—) and proper name (____).
Symbols: comment number (*), hidden number (×), blank number (□), slash number (/), identification number (▲ or ●), substitution number (~), consecutive number symbol (...), arrow symbol (→).