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我正在努力学习围棋，并尝试不同的概念。现在我正在尝试一种PubSub方法，但是在应用程序中。我有一个EventBus，我试图通过依赖注入来传递实例。然而，当我运行应用程序时，什么都没有发生。

main

package main

import (
    "github.com/asaskevich/EventBus"
    modelA "interfaces/internal/modelA"
    modelB "interfaces/internal/modelB"
)

func main() {
    bus := EventBus.New()

    a := &modelA.Bus{EventBus: bus}
    a.Send()

    b := &modelB.Bus{
        EventBus: bus,
    }
    b.Receive()

}

internal/modelA

package modelA

import (
    "fmt"
    "github.com/asaskevich/EventBus"
)

type Bus struct {
    EventBus EventBus.Bus
}

type ModelAService interface {
    Run()
    Send()
}

func calculator(a int, b int) {
    fmt.Printf("ModelA "+"%d\n", a+b)
}

func (bus *Bus) Receive() {
    err := bus.EventBus.Subscribe("testMessageFromB", calculator)
    if err != nil {
        fmt.Printf("Error Receiving message...")
    }
}

func (bus *Bus) Send() {
    bus.EventBus.Publish("testMessageFromA", 33, 33)
}

internal/modelB

package modelB

import (
    "fmt"
    "github.com/asaskevich/EventBus"
)

type Bus struct {
    EventBus EventBus.Bus
}

type ModelBService interface {
    Run()
    Send()
}

func calculator(a int, b int) {
    fmt.Printf("ModelB "+"%d\n", a+b)
}

func (bus *Bus) Receive() {
    err := bus.EventBus.Subscribe("testMessageFromA", calculator)
    if err != nil {
        fmt.Printf("Error Receiving message...")
    }
}

func (bus *Bus) Send() {
    bus.EventBus.Publish("testMessageFromB", 33, 60)
}