为 "keydown" 事件绑定一个处理函数,或者触发元素上的 "keydown" 事件。
Bind an event handler to the "keypress" event, or trigger that event on an element.
Bind an event handler to the "keydown" event, or trigger that event on an element.
为 "keypress" 事件绑定一个处理函数,或者触发元素上的 "keypress" 事件。
Bind an event handler to the "keyup" event, or trigger that event on an element.
为 "keyup" 事件绑定一个处理函数,或者触发元素上的 "keyup" 事件。