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jquery ui  的弹出窗体  dialog 。有时会出现当再次 打开或在父窗体拖动时，高度会发生变化。则需要进行设置。open , dragstop 事件处理    $('#showResult').dialog({ height: 320, width: 300, position: ['right'],        open: function (event, ui) {            // Height setter has no effect after init either            $(this).dialog("option", "height", 320);            // Width setter works after initialization too            $(this).dialog("option", "width", 300);        },        dragStop: function (event, ui) {            $(this).dialog("option", "height", 320);            // Width setter works after initialization too            $(this).dialog("option", "width", 300);        }    });  参考方法： http://api.jqueryui.com/dialog/