<!DOCTYPE html> 声明后 鼠标拖动事怪 无效？

要记得加上px单位，以后设计left，top这种的属性，都要记得加px单位    function MouseMoveToResize(event) {
        if (!currentResizeTdObj) return;
        var obj = currentResizeTdObj;
        event = event || window.event;
        if (!obj.mouseDownX) return false;
        if (obj.parentNode.rowIndex == 0) {
            var newWidth = obj.tdW * 1 + event.clientX * 1 - obj.mouseDownX;
            if (newWidth > 0) obj.style.width = newWidth+'px';
            else obj.style.width = 1;
        }
        if (obj.cellIndex == 0) {
            var newHeight = obj.tdH * 1 + event.clientY * 1 - obj.mouseDownY;
            if (newHeight > 0) obj.style.height = newHeight + 'px';
            else obj.style.height = 1;
        }
    }
    function MouseUpToResize() {
        if (!currentResizeTdObj) return;
        if (currentResizeTdObj.releaseCapture) currentResizeTdObj.releaseCapture();
        currentResizeTdObj = null;
    }
    //改变表格行列宽函数
    function ResizeTable_Init(table, needChangeWidth, needChangeHeight) {
        if (!needChangeWidth && !needChangeHeight)
            return;
        var oTh = table.rows[0];
        if (needChangeWidth) {
            for (var i = 0; i < oTh.cells.length; i++) {
                var cell = oTh.cells[i];
                cell.style.cursor = "e-resize";
                cell.style.width = cell.offsetWidth + 'px';
                cell.onmousedown = MouseDownToResize;
            }
        }
        if (needChangeHeight) {
            for (var j = 0; j < table.rows.length; j++) {
                var cell = table.rows[j].cells[0];
                cell.style.cursor = "s-resize";
                cell.onmousedown = MouseDownToResize;
            }
        }
        if (needChangeWidth && needChangeHeight)
            oTh.cells[0].style.cursor = "se-resize";
        table.style.width = null;
        table.style.tableLayout = "fixed";
    }