go 判断结构体是否为空

1package main
2
3import (
4    "fmt"
5    "reflect"
6)
7
8
9type A struct{
10    name string
11    age int
12}
13
14
15func (a A) IsEmpty() bool {
16    return reflect.DeepEqual(a, A{})
17}
18
19
20func main() {
21    var a A
22    if a == (A{}) {  // 括号不能去
23        fmt.Println("a == A{} empty")
24    }
25
26    if a.IsEmpty() {
27        fmt.Println("reflect deep is empty")
28    }
29}