如何在 Go 中声明接口数组

Question

我很难完成创建接口数组的微不足道的任务。这是我的代码，

var result float64
for i := 0; i < len(diff); i++ {
    result += diff[i]
}
result = 1 / (1 + math.Sqrt(result))

id1 := user1.UserId
id2 := user2.UserId

user1.Similar[id2] = [2]interface{id2, result}
user2.Similar[id1] = [2]interface{id1, result}

result 是浮点数，user*.UserId 是 int。

我的错误信息是

syntax error: name list not allowed in interface type

Answer 1

例如，

package main

import (
    "fmt"
)

func main() {
    x, y := 1, "@"
    a := [2]interface{}{x, y}
    fmt.Println(a)
    b := [2]interface{}{0, "x"}
    fmt.Println(b)
}

输出：

[1 @]
[0 x]