最小惊讶原则

In user interface design and software design,

the principle of least astonishment (POLA), also known as principle of least surprise (POLS), proposes that a component of a system should behave in a way that most users will expect it to behave, and therefore not astonish or surprise users. The following is a corollary of the principle: "If a necessary feature has a high astonishment factor, it may be necessary to redesign the feature."