June 24, 2022: golang multiple choice question, what does the following golang code output? A：1； B：3； C：4； D: Compilation failed. package main import ( “fmt“ ) func mai

2022-06-24：golang choice question , following golang What does the code output ？A：1;B：3;C：4;D： Compile failed .

package main

import (
	"fmt"
)

func main() {
    
	var nums1 []interface{
    }
	nums2 := []int{
    1, 3, 4}
	nums3 := append(nums1, nums2)
	fmt.Println(len(nums3))
}

answer 2022-06-24：

Answer selection A.nums2 It's just nums3 An element of .