错误日志:TypeError: ejs:51 49| <% categorizedProducts.forEach((item,index)=>{ %> 50| <% item.children.length = 0 %> >> 51| <% productList.rows.forEach((item1,index1)=>{ %> 52| <% if(item1.classifyName == item.classifyName){ %> 53| <% item.children.push(item1) %> 54| <% } %> Cannot read properties of undefined (reading 'forEach')