如何在具有数据表的表中从多维JSON打印所选值

Question

大家好，我正在从REST-API检索大型JSON。我想在一个表列中显示2个数组中的值，但它对我不起作用。 我需要所有line_items.quantity +“您必须支付：” + line_items.total在表的一列中。 希望有人能帮忙。

{
"id": 184,
"parent_id": 0,
"number": "184",
"order_key": "wc_order",
"created_via": "checkout",
"version": "3.6.2",
"status": "processing",
"currency": "EUR",
"date_created": "2019-05-12T21:43:47",
"date_created_gmt": "2019-05-12T19:43:47",
"date_modified": "2019-05-12T21:43:47",
"date_modified_gmt": "2019-05-12T19:43:47",
"discount_total": "0.00",
"discount_tax": "0.00",
"shipping_total": "0.00",
"shipping_tax": "0.00",
"cart_tax": "4.48",
"total": "28.00",
"total_tax": "4.48",
"prices_include_tax": true,
"customer_id": 2,
"customer_ip_address": "9",
"customer_user_agent": "Mozk",
"customer_note": "",
"billing": {
  "first_name": "lana",
  "last_name": "NummerZwo",
  "company": "",
  "address_1": "l12",
  "address_2": "",
  "city": "bochum",
  "state": "",
  "postcode": "44237",
  "country": "DE",
  "email": "kl",
  "phone": "",
  "title": "1"
},
"shipping": {
  "first_name": "lana",
  "last_name": "NummerZwo",
  "company": "",
  "address_1": "Sach",
  "address_2": "",
  "city": "bochum",
  "state": "",
  "postcode": "44237",
  "country": "DE",
  "title": "1",
  "parcelshop": false,
  "parcelshop_post_number": ""
},
"payment_method": "cod",
"payment_method_title": "Per Nachnahme",
"transaction_id": "",
"date_paid": null,
"date_paid_gmt": null,
"date_completed": null,
"date_completed_gmt": null,
"cart_hash": "k",
"meta_data": [
  {
    "id": 1967,
    "key": "_billing_title",
    "value": "1"
  },
  {
    "id": 1968,
    "key": "_shipping_title",
    "value": "1"
  },
  {
    "id": 1969,
    "key": "is_vat_exempt",
    "value": "no"
  }
],
"line_items": [
  {
    "id": 6,
    "name": "product 2 - blue",
    "product_id": 68,
    "variation_id": 69,
    "quantity": 4,
    "tax_class": "",
    "subtotal": "11.76",
    "subtotal_tax": "2.24",
    "total": "11.76",
    "total_tax": "2.24",
    "taxes": [
      {
        "id": 34,
        "total": "2.235294",
        "subtotal": "2.235294"
      }
    ],
    "meta_data": [
      {
        "id": 63,
        "key": "farbe",
        "value": "red"
      },
      {
        "id": 64,
        "key": "_units",
        "value": ""
      },
      {
        "id": 65,
        "key": "_delivery_time",
        "value": ""
      },
      {
        "id": 66,
        "key": "_item_desc",
        "value": ""
      },
      {
        "id": 67,
        "key": "_unit_price",
        "value": ""
      }
    ],
    "sku": "",
    "price": 2.9411765
  },
  {
    "id": 7,
    "name": "product - red",
    "product_id": 68,
    "variation_id": 70,
    "quantity": 2,
    "tax_class": "",
    "subtotal": "7.56",
    "subtotal_tax": "1.44",
    "total": "7.56",
    "total_tax": "1.44",
    "taxes": [
      {
        "id": 34,
        "total": "1.436975",
        "subtotal": "1.436975"
      }
    ],
    "meta_data": [
      {
        "id": 77,
        "key": "farbe",
        "value": "blue"
      },
      {
        "id": 78,
        "key": "_units",
        "value": ""
      },
      {
        "id": 79,
        "key": "_delivery_time",
        "value": ""
      },
      {
        "id": 80,
        "key": "_item_desc",
        "value": ""
      },
      {
        "id": 81,
        "key": "_unit_price",
        "value": ""
      }
    ],
    "sku": "",
    "price": 3.7815125
  },
  {
    "id": 8,
    "name": "product - red",
    "product_id": 77,
    "variation_id": 78,
    "quantity": 1,
    "tax_class": "",
    "subtotal": "4.20",
    "subtotal_tax": "0.80",
    "total": "4.20",
    "total_tax": "0.80",
    "taxes": [
      {
        "id": 34,
        "total": "0.798319",
        "subtotal": "0.798319"
      }
    ],
    "meta_data": [
      {
        "id": 91,
        "key": "farbe",
        "value": "blue"
      },
      {
        "id": 92,
        "key": "_units",
        "value": ""
      },
      {
        "id": 93,
        "key": "_delivery_time",
        "value": ""
      },
      {
        "id": 94,
        "key": "_item_desc",
        "value": ""
      },
      {
        "id": 95,
        "key": "_unit_price",
        "value": ""
      }
    ],
    "sku": "",
    "price": 4.201681
  }
],
"tax_lines": [
  {
    "id": 10,
    "rate_code": "DE-MWST. DE-1",
    "rate_id": 34,
    "label": "MwSt. DE",
    "compound": false,
    "tax_total": "4.48",
    "shipping_tax_total": "0.00",
    "meta_data": []
  }
],
"shipping_lines": [
  {
    "id": 9,
    "method_title": "Abholung vor Ort",
    "method_id": "local_pickup",
    "instance_id": "3",
    "total": "0.00",
    "total_tax": "0.00",
    "taxes": [],
    "meta_data": [
      {
        "id": 101,
        "key": "Positionen",
        "value": "product blue; 4, product - red × 2, product2 - blue × 1"
      }
    ]
  }
],
"fee_lines": [],
"coupon_lines": [],
"refunds": [],
"parcel_delivery_opted_in": "",
"direct_debit": {
  "holder": "",
  "iban": "",
  "bic": "",
  "mandate_id": ""
},
"_links": {
  "self": [
  ],
  "collection": [
  ],
  "customer": [
  ]
}

}，

这是JSON一部分的样子。 我正在使用此代码来打印我需要的信息：

var customer_table = $('#customer_table').DataTable({
    ajax: {
        "url":"www.example.de/REST-API",
    "dataSrc": ""
},
    "columns": [
        { "data": "id" },
            {"data":"billing.last_name",
              "className":"left",
              "render":function(data, type, full, meta){
                  return full.billing.first_name +" "+ full.billing.last_name;
              }
            },
        { "data":"billing.last_name",
              "className":"left",
              "render":function(data, type, full, meta){
                  return full.line_items[0].quantity +"x "+ full.line_items[0].total;
              }
            },
        { "data": "billing.first_name"},
        { "data": "line_items[, ].name"},
        { "data": "line_items[, ].quantity" },
        {for (var i = 0; i < results.data.length; i++) {
console.log( results.data.line_items[i].quantity + results.data.line_items[i].total);

}}

我真的不知道如何在这个大JSON中循环： 我需要这部分的帮助：

{for（var i = 0; i