If there is a comma in the quote, put the comma in the sentence.

1. Whenever the quoted words are used independently, the final punctuation should be placed inside the quotation marks. Xiaodong said: "You are my close friend." This was written by Zhang Wei, a student in my class, in an essay. For the character dialogue, in addition to changing the period outside the quotation marks that Zhang Wei put in the quotation marks in the composition text, I also told the students in class: "Punctuation marks are an integral part of a sentence, just like the tail of a sentence. Wherever you move it, it will follow. If you put the sentence in quotation marks but leave the tail outside, that would be wrong." When the whole class heard this, they all laughed heartily. 2. Use the quotation as a For part of the author's own words, the end of the quotation marks does not need to be punctuated by the saying in "Long Song Xing": "If a young man does not work hard, the old man will be sad." This is very reasonable. This is what Zhang Wei wrote in a later composition. In a sentence, I crossed out the period after "The young man is sad". Zhang Wei didn't understand, so he came to ask me: "Teacher, you said before that you should put the period in quotation marks. This sentence itself has a period." , why should we cross out the period?" I first affirmed that he studied seriously and was good at thinking, and then explained to him: "Yes, 'Young men who don't work hard will be sad when they are old' is a complete sentence, and it should be with a period. .