Hover event handlers such as onmousemove often produce a large number of events.

例如，onmousemove等鼠标事件处理函数常常会产生大量调用。

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The element's onmousedown handler is invoked, which installs onmousemove and onmouseup handlers.

此元素的onmousedown处理程序将被调用，它安装 onmousemove和 onmouseup 处理程序。

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The drag handler for a drag-and-drop operation USES all three mouse handlers: onmousedown, onmouseup, and onmousemove.

针对拖放操作的拖动处理程序使用了这三个鼠标处理程序：onmousedown、onmouseup和onmousemove。

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When you initiate a drag-and-drop sequence and invoke this handler, it creates onmousemove and onmouseup handlers and installs them in the target element.

在初始化拖放序列并调用此处理程序时，它会创建onmousemove和onmouseup处理程序并能在目标元素内安装它们。

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When you initiate a drag-and-drop sequence and invoke this handler, it creates onmousemove and onmouseup handlers and installs them in the target element.

在初始化拖放序列并调用此处理程序时，它会创建onmousemove和onmouseup处理程序并能在目标元素内安装它们。

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