goalng类型转换

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int 转 string

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package main
 
import (
	"fmt"
	"strconv"
)
 
var i int = 10
 
func main() {
	// 通过Itoa方法转换
	str1 := strconv.Itoa(i)
 
	// 通过Sprintf方法转换
	str2 := fmt.Sprintf("%d", i)
 
	// 打印str1
	fmt.Println(str1)
	// 打印str2
	fmt.Println(str2)
}

[]T 转 []interface{}

Can I convert a []T to an []interface{}?
Not directly, because they do not have the same representation in memory. It is necessary to copy the elements individually to the destination slice. This example converts a slice of int to a slice of interface{}:

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t := []int{1, 2, 3, 4}
s := make([]interface{}, len(t))
for i, v := range t {
    s[i] = v
}