JS遍历Table的所有单元格内容

转自：https://www.cnblogs.com/henuyuxiang/p/6647985.html

 1 function GetInfoFromTable(tableid) {
 2     var tableInfo = "";
 3     var tableObj = document.getElementById(tableid);
 4     for (var i = 0; i < tableObj.rows.length; i++) {    //遍历Table的所有Row
 5         for (var j = 0; j < tableObj.rows[i].cells.length; j++) {   //遍历Row中的每一列
 6             tableInfo += tableObj.rows[i].cells[j].innerText;   //获取Table中单元格的内容
 7             tableInfo += "   ";
 8         }
 9         tableInfo += "
";
10     }
11     return tableInfo;
12 }