Baidu knows the slogan: Answer questions you don't understand: follow Baidu's rules: don't violate Baidu's regulations, answer questions comprehensively, and Baidu will let you know what you don't understand; Enrich your knowledge. To avoid deleting questions, answers or comments, please note that your questions, answers or comments do not violate the Informed Agreement. If there is any violation, the "Know" manager has the right to directly delete it without notifying the user in advance, and impose corresponding penalties in accordance with relevant regulations. If the circumstances are serious, "Know" has the right to punish him by closing some of his rights, suspending or even deleting his account.