错误日志：TypeError: ejs:79
    77|           
    78|           <div class="pro_list container">
 >> 79|             <% if(productList && productList.rows.length !== 0){ %>
    80|               <% productList.rows.forEach(item=>{ %>
    81|                 <a href="pro-detail.html?productDetailsId=<%= item.productDetailsId %>" class="item" target="_top">
    82|                   <div class="img">

Cannot read properties of undefined (reading 'length')