添加这个答案，以便其他人可以找到它:

Adding this an answer so that other's might find it:

我强烈建议您通过购买这个插件来节省一些时间，它只是49 美元.但是，如果您真的想自己解决这个问题；这里有一些东西可以让你开始.您需要使用以下过滤器/操作:

I'd strongly recommend saving yourself some time by simply purchasing the this plugin, it's only $49 dollars. However, if you really do want to figure this out for yourself; here's something to get you started. You'll need to hook into the following filters/actions:

• woocommerce_before_add_to_cart_button(将字段添加到表单中)
• woocommerce_add_cart_item_data(提交字段数据)
• woocommerce_get_cart_item_from_session(将数据添加到会话)
• woocommerce_get_item_data(在购物车页面上显示数据)
• woocommerce_add_order_item_meta(将其添加到订单中，使其显示在管理区域中)