Question

关于网站语言设置的问题

例如：我有3个网页连接超链接（从page01 - ＆gt; page02 / page03和返回）。我想更改第1页上的语言。（即使用选择按钮）。
语言更改后，所有3个页面都应以新语言显示内容。

服务器是否可以发送一种语言文件，每个网站都可以搜索语言标签？

Answer 1

为不同语言提供不同的网址。

/en-us/page1
/en-us/page2
/en-us/page3
/es-es/page1
/es-es/page2
/es-es/page3

然后只使用它们之间的相对URL。

<ul>
    <li> <a href="page1">Page 1</a> </li>
    <li> <a href="page2">Page 2</a> </li>
    <li> <a href="page3">Page 3</a> </li>
</ul>

<a href="../es-es/page1" lang="es-es" hreflang="es-es">español</a>

Answer 2

static func decrementIventory(completed: @escaping (Bool) -> (), productId: String) throws {
        print("Product.decrementIventory() : started")
        let context = CoreData.databaseContext
        let request: NSFetchRequest<Product> = Product.fetchRequest()
        request.predicate = NSPredicate(format: "productId == %@", productId)
        do {
            let fetch = try context.fetch(request)
            print("Product.decrementIventory() : fetching product")
            if fetch.count > 0 {
                for value in fetch {
                    //                if value.productId == productId {
                    if #available(iOS 10.0, *) {
                        let newAvailableQuantity = Int(value.availableQuantity!)! - 1
                        let newSoldQuantity = Int(value.soldQuantity!)! + 1
                        value.setValue(String(describing: newAvailableQuantity) , forKey: "availableQuantity")
                        value.setValue(String(describing: newSoldQuantity), forKey: "soldQuantity")

                        let ref = Database.database().reference()
                        ref.child("Continent").child("Europe").child("Country").child("\(UserDetails.country!)").child("Region").child(UserDetails.region!).child("City").child(UserDetails.city!).child("Catalog").child("\(productId)").child("Available Quantity").setValue(String(describing: newAvailableQuantity))
                        ref.child("Continent").child("Europe").child("Country").child("\(UserDetails.country!)").child("Region").child(UserDetails.region!).child("City").child(UserDetails.city!).child("Catalog").child("\(productId)").child("Sold Quantity").setValue(String(describing: newSoldQuantity))
                    } else {
                        // Fallback on earlier versions
                        let newAvailableQuantity = Int(value.availableQuantity!)! - 1
                        let newSoldQuantity = Int(value.soldQuantity!)! + 1
                        value.setValue(String(describing: newAvailableQuantity) , forKey: "availableQuantity")
                        value.setValue(String(describing: newSoldQuantity), forKey: "soldQuantity")

                        let ref = Database.database().reference()
                        ref.child("Continent").child("Europe").child("Country").child("\(UserDetails.country!)").child("Region").child(UserDetails.region!).child("City").child(UserDetails.city!).child("Catalog").child("\(productId)").child("Available Quantity").setValue(String(describing: newAvailableQuantity))
                        ref.child("Continent").child("Europe").child("Country").child("\(UserDetails.country!)").child("Region").child(UserDetails.region!).child("City").child(UserDetails.city!).child("Catalog").child("\(productId)").child("Sold Quantity").setValue(String(describing: newSoldQuantity))
                    }
                    //                }
                }
            }

        } catch  {
            print("Product.decrementIventory() : Error in fetching a product : \(error)")
        }
        do {
            try context.save()
            print("Product.decrementIventory() : modified product is saved to Core Data")
            // setting completion for decrementIventory() here causes inconsistency in Firebase, so we set completion for decrementIventory() in Firebase.uploadProduct completed scope
                        completed(true)
        } catch  {
            print("Product.decrementIventory() : Error saving modified product to Core Data : \(error)")
        }
    }

这使用Google翻译显示了语言的下拉列表。

参考https://www.w3schools.com/howto/howto_google_translate.asp

html页面，改变语言

2 个答案: