var tab = document.createElement("table");
tab.innerHTML += "<td>訂貨單號</td>"+
"<td>單據日期</td>"+
"<td>商品類型</td>"+
"<td>訂單屬性</td>"+
"<td>配貨次數</td>"+
"<td>詳細</td>";

var inn = "<tr>"+
"<td>訂貨單號</td>"+
"<td>單據日期</td>"+
"<td>商品類型</td>"+
"<td>訂單屬性</td>"+
"<td>配貨次數</td>"+
"<td>詳細</td>"+
"</tr>";
$(tab).html(inn);