比较两个slice、struct或者map是否相等

package main

import (
    "fmt"
    "reflect"
)

type A struct {
    s string
}

func main() {

    a1 := A{s: "abc"}
    a2 := A{s: "abc"}
    if reflect.DeepEqual(a1, a2) {
        fmt.Println(a1, "==", a2)
    }

    b1 := []int{1, 2}
    b2 := []int{1, 2}
    if reflect.DeepEqual(b1, b2) {
        fmt.Println(b1, "==", b2)
    }

    c1 := map[string]int{"a": 1, "b": 2}
    c2 := map[string]int{"a": 1, "b": 2}
    if reflect.DeepEqual(c1, c2) {
        fmt.Println(c1, "==", c2)
    }
}

func stringSliceEqualBCE(a, b []string) bool {
    if len(a) != len(b) {
        return false
    }

    if (a == nil) != (b == nil) {
        return false
    }

    b = b[:len(a)]
    for i, v := range a {
        if v != b[i] {
            return false
        }
    }

    return true
}