"Don't talk and play in class"为什么用"and"而不用"or"?

"Don't talk and play in class"为什么用"and"而不用"or"?
"Don't talk and play in class"为什么用"and"而不用"or"?

"Don't talk and play in class"为什么用"and"而不用"or"?
省略主语（you）的祈使句

and 表示既不能 talk也不能 play

是祈使句