As a website operator, in addition to have some necessary professional knowledge to master a website, such as prototype planning, interaction design, SEO, as well as basic html code, you should also know more about some of the theories which are good for site operations to ensure that the site can be long-term, stable.1. Law of 250Girard thinks every person knows at least 250 people. If you win the goodwill of a customer, it means you win the goodwill of 250 individuals; Conversely, if you offend a customer, it means you offend 250 customers.For your website, a visitor might be able to bring a...