Question

如何在字符串sclice中追加字符串？我试过了

s := make([]string, 1, 4)
s[0] = "filename"
s[0] := append(s[0], "dd")

但这不正确。然后我试了

s[:1] := append(s[:1], "dd")

但它也不正确。

如何将字符串附加到s[0]？

Answer 1

内置append()函数用于将元素附加到切片。如果您想将string附加到string，只需使用串联+即可。如果要将结果存储在第0个索引处，只需将结果分配给它：

s[0] = s[0] + "dd"

或简短：

s[0] += "dd"

另请注意，由于:=切片已存在，您不必（不能）s使用fmt.Println(s)。

[filenamedd]输出：

s = append(s, "dd")

如果要附加到切片而不是第一个元素，请写入：

fmt.Println(s)

[filenamedd dd]输出（继续上一个示例）：

"items": [{
                "id": 1,
                "title": "Montrachet",
                "imageUrl": "http://winebuff.com.hk/products_image/3376-Ramonet-ChassagneMontrachetBlanc.jpg",
                "imageUrls": [
                    "http://winebuff.com.hk/products_image/3376-Ramonet-ChassagneMontrachetBlanc.jpg",
                    "http://media.riepenau.com/wines/17973_b.jpg",
                    "http://lorempixel.com/400/400/food/3"         
                ],
                "properties": [
                    {"description" : "Kırmızı Şaraplar Desc"},
                    {"region" :"Bordeaux"},
                    {"age": "16"},
                    {"producer" :"Kayra"},
                    {"grapeType":"Espadeiro"}

                ],
                "priceGlass": "1",
                "priceBottle": "2",
                "year": "1999"

            },

{
                "id": 2,
                "title": "Montrachet2",
                "imageUrl": "http://winebuff.com.hk/products_image/3376-Ramonet-ChassagneMontrachetBlanc.jpg",
                "imageUrls": [
                    "http://winebuff.com.hk/products_image/3376-Ramonet-ChassagneMontrachetBlanc.jpg",
                    "http://media.riepenau.com/wines/17973_b.jpg",
                    "http://lorempixel.com/400/400/food/3"         
                ],
                "properties": [
                    {"description" : "Kırmızı Şaraplar Desc"},
                    {"region" :"Bordeaux"},
                    {"age": "16"},
                    {"producer" :"Kayra"},
                    {"grapeType":"Chardonnay"}

                ],
                "priceGlass": "1",
                "priceBottle": "2",
                "year": "1999",
            }
]

在short variable declaration上尝试这些。

Golang在字符串切片中追加字符串

1 个答案: