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事件冒泡或事件捕获 addEventListener(event, function, useCapture); 默认值为 false, 即冒泡传递,当值为 true 时, 事件使用捕获传递。 取消事件冒泡 ~~~ function stopBubble(event){ if(event.stopPropagation){ event.stopPropagation(); }else{ event.cancelBubble = true; } } ~~~ 鼠标事件 click:点击 = (mousedown:按下+mouseup:弹起) mousemove:移动 mouseover:鼠标盖住当前区域=mouseenter mouseout:鼠标移出当前区域=mouseleave contextmenu:监听右键,常用语取消菜单 用e.button获取鼠标的按键,0:左键,1:滚轮,2:右键 鼠标点击拖拽移动 ~~~ div.onmousedown = function (e) { disX = e.pageX - parseInt(div.style.left); disY = e.pageY - parseInt(div.style.top); document.onmousemove = function (e) { var event = e || window.event; div.style.left = e.pageX - disX + "px"; div.style.top = e.pageY - disY + "px"; } document.onmouseup = function (e) { document.onmousemove = null; } } ~~~ 键盘事件 keydown:键盘按下,可以响应**任意**键盘按键,但是无法区分大小写 keypress:只可以响应**字符类**键盘按键,返回ASCII码。可以转换成相应的字符 keyup:键盘弹起