Golang 如何比较struct、slice和map的相等性

Golang 如何比较struct、slice和map的相等性

==intboolstructslicemap

比较struct的相等性

struct

type person struct {
    name string
    age  int
}

func (p person) Equals(other person) bool {
    return p.name == other.name && p.age == other.age
}

p1 := person{name: "Alice", age: 20}
p2 := person{name: "Bob", age: 30}

if p1.Equals(p2) {
    fmt.Println("Equal")
} else {
    fmt.Println("Not equal")
}

Equalsperson

structreflectreflect

import "reflect"

func structEquals(a, b interface{}) bool {
    valueA := reflect.ValueOf(a)
    valueB := reflect.ValueOf(b)

    // 如果类型不同，则返回false
    if valueA.Type() != valueB.Type() {
        return false
    }

    // 遍历结构体的每个字段
    for i := 0; i < valueA.NumField(); i++ {
        fieldA := valueA.Field(i)
        fieldB := valueB.Field(i)

        // 如果字段类型不同，则返回false
        if fieldA.Type() != fieldB.Type() {
            return false
        }

        // 如果字段值不同，则返回false
        if !reflect.DeepEqual(fieldA.Interface(), fieldB.Interface()) {
            return false
        }
    }

    return true
}

type person struct {
    name string
    age  int
}

p1 := person{name: "Alice", age: 20}
p2 := person{name: "Bob", age: 30}

if structEquals(p1, p2) {
    fmt.Println("Equal")
} else {
    fmt.Println("Not equal")
}

reflectValueOfNumField

reflect

比较slice的相等性

slicereflect.DeepEqual

a := []int{1, 2, 3}
b := []int{1, 2, 3}

if reflect.DeepEqual(a, b) {
    fmt.Println("Equal")
} else {
    fmt.Println("Not equal")
}

reflect.DeepEqualsliceslice

slicestructslicemapstructslice

type person struct {
    name string
    age  int
}

a := []person{{name: "Alice", age: 20}, {name: "Bob", age: 30}}
b := []person{{name: "Alice", age: 20}, {name: "Charlie", age: 40}}

equal := true
for i := 0; i < len(a); i++ {
    if !a[i].Equals(b[i]) {
        equal = false
        break
    }
}

if equal {
    fmt.Println("Equal")
} else {
    fmt.Println("Not equal")
}

sliceEquals