A form is a graphical user interface (GUI) that lets Web-site visitors leave their mark via enter-text-here fields, buttons, checkboxes, pulldown menus, and scrolling lists.

• 表单是一个图形用户界面(GUI)，它可以使站点访问者通过"输入文本"字段或是按钮或是复选框或是下拉菜单及滚动列表留下他们的足迹。