What are the references in punctuation marks?

Put it this way: if you quote others in your writing. If this passage is complete, such as one or several complete sentences or even paragraphs in someone's work, then you should mark punctuation marks after the quotation marks (")-usually punctuation marks (periods, question marks or exclamation points) of the original words. But if you only quote part of other people's sentences as part of your own sentences when writing, you should continue to write your own words after quotation marks, and there is no punctuation between your own words and the quoted sentences. For example, you quoted an ancient poem "A thousand miles in Jiangling will be returned in one day". If you only need to quote the words "a thousand miles of Jiangling" in this sentence to express how "a thousand miles of Jiangling" is partially quoted, then you should write it as "a thousand miles of Jiangling". (Note: * is the text of your article. )

I wonder if you can understand this?