Swift 闭包表达式为3

闭包表达式未使用错误

有人能解决问题吗？我怎样才能正确地解决问题？我怎样才能在代码中毫无问题地使用

if-else

语句

func storeToCoreData(product_Name : String,product_Brand : String,original_Price : String,discount_Price : String,userPhotoString : String,catagory : String, urlCoreData : String){
    if  catagory == "Tools" {
            switch (urlCoreData){
            case "Mens_shirt":
            coreVariables.mens_Shirt.StoreProduct(product_Name: product_Name, product_Brand: product_Brand, product_Price: original_Price, product_Discount: discount_Price, product_Image: userPhotoString)
        break
            case "Mens_sweatshirt" :
            coreVariables.mens_SweatShirt.StoreProduct(product_Name: product_Name, product_Brand: product_Brand, product_Price: original_Price, product_Discount: discount_Price, product_Image: userPhotoString)
        break
            case "Mens_tshirt":
            coreVariables.mens_Tshirt.StoreProduct(product_Name: product_Name, product_Brand: product_Brand, product_Price: original_Price, product_Discount: discount_Price, product_Image: userPhotoString)
        break
            default:
                break
        }
    } else {
        switch (urlCoreData){
            case "Women_kurta" :
            coreVariables.womens_Kurta.StoreProduct(product_Name: product_Name, product_Brand: product_Brand, product_Price: original_Price, product_Discount: discount_Price, product_Image: userPhotoString)
        break
            case "Women_saree" :
            coreVariables.womens_Saree.StoreProduct(product_Name: product_Name, product_Brand: product_Brand, product_Price: original_Price, product_Discount: discount_Price, product_Image: userPhotoString)
        break
            case "Women_tops":
            coreVariables.womens_Tops.StoreProduct(product_Name: product_Name, product_Brand: product_Brand, product_Price: original_Price, product_Discount: discount_Price, product_Image: userPhotoString)
                break
            default:
                break
        }
    } else {
        switch (urlCoreData){
        case "first" :
            coreVariables.first.StoreProduct(product_Name: product_Name, product_Brand: product_Brand, product_Price: original_Price, product_Discount: discount_Price, product_Image: userPhotoString)
            break
        case "second" :
            coreVariables.second.StoreProduct(product_Name: product_Name, product_Brand: product_Brand, product_Price: original_Price, product_Discount: discount_Price, product_Image: userPhotoString)
            break
        case "third":
            coreVariables.third.StoreProduct(product_Name: product_Name, product_Brand: product_Brand, product_Price: original_Price, product_Discount: discount_Price, product_Image: userPhotoString)
            break
        default:
            break
    }
}

---

首先，这是斯威夫特：

• 开关

  情况下无中断语句（除了

  默认值

  ）

• 开关

  参数周围没有括号
• 没有蛇壳变量名

---

出现此错误的原因是第一个

else

子句捕获了

分类！=“工具”

因此第二个

else

将永远无法到达

例如，如果需要第二个

else

条件，则必须插入第二个

If

条件

if catagory == "Tools" {
   ...
} else if catagory == "Something Else" {
   ...
} else {
   ...
}