function GetInfoFromTable(tableid) {    var tableInfo = "";    var tableObj = document.getElementById(tableid);    for (var i = 0; i < tableObj.rows.length; i++) {    //遍历Table的所有Row        for (var j = 0; j < tableObj.rows[i].cells.length; j++) {   //遍历Row中的每一列            tableInfo += tableObj.rows[i].cells[j].innerText;   //获取Table中单元格的内容            tableInfo += "   ";        }        tableInfo += "\n";    }    return tableInfo;}