Spinner (computing)
（重定向自Spin box）
A spinner or numeric updown is a graphical control element with which a user may adjust a value in an adjoining text box by either clicking on an up or down arrow, or by holding an arrow down, causing the value in the text box to increase (if the up arrow is held down) or decrease (if the down arrow is held down). A spinner is typically oriented vertically. In most cases holding a button down causes the speed at which the associated value changes to increase. Usually, the value of the spinner is displayed in a text box next to the spinner, allowing the user to use the spinner to adjust the value, or to type the value into the text box.