golang中interface(鸭子)类型的使用

2018-12-14 11:21:44 catherine

package main
import (
    "fmt"
)
func printAll(values []interface{}) {
    for _, val := range values {
        fmt.Println(val)
    }
}
func main() {
    name := []string{"littleGirl", "playBoy", "1"}
    values := make([]interface{}, len(name))
    for k, v := range name {
        values[k] = v
    }
    printAll(values)
}

然而，需要注意的是，[]T不能直接赋值给[]interface{}
这样子会有错误的.

t := []int{1, 2, 3, 4}
var s []interface{} = t

编译时会输出下面的错误

cannot use t (type []int) as type []interface {} in assignment

分类: web

标签: golang

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作者: catherine

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