在 Go 中使用通道，我创建了一个返回地址的阶乘函数

Question

我正在使用 Channels 和 Go Routines 来练习伪并发。出于某种原因，我的 Factorial 函数似乎返回一个地址，而不是实际的整数值。这是我的代码：package mainimport (    "fmt")func main() {    c := make(chan uint64)    go factorialViaChannel(8, c)    f := c //Assign go channel value to f    fmt.Println("The Factorial of 8 is", f)    myNums := []int64{1, 2, 3, 4, 5, 6, 7, 8, 9}    product := make(chan int64)    go multiply(myNums, product) //create go routine pseudo thread    result := <-product    fmt.Println("The Result of this array multipled computation is", result)}func factorialViaChannel(value int, factorial chan uint64) {    var computation uint64    if value < 0 {        fmt.Println("Value can not be less than 0")    } else {        for i := 1; i <= value; i++ {            computation *= uint64(i)        }    }    factorial <- computation}func multiply(nums []int64, product chan int64) { //multiply numerous values then send them to a channel    var result int64 = 1    for _, val := range nums {        result *= val    }    product <- result //send result to product}这是我的结果：$ go run MultipleConcurrency.goThe Factorial of 8 is 0xc42000c028The Result of this array multipled computation is 362880为什么打印内存地址而不是值？我有点困惑。谢谢！

Answer 1

替换这一行：

f := c //Assign go channel value to f

和

f := <-c //Assign go channel value to f

并初始化变量 -computation值1在factorialViaChannel()

像这样：

var computation uint64 = 1

Answer 2

我想通了，问题已在下面更正：

package main

import (

    "fmt"

)

func main() {

    factorial := make(chan uint64)

    go factorialViaChannel(8, factorial)

    f := <-factorial //Assign go channel value to f

    fmt.Println("The Factorial of 8 is", f)

    myNums := []int64{1, 2, 3, 4, 5, 6, 7, 8, 9}

    product := make(chan int64)

    go multiply(myNums, product) //create go routine pseudo thread

    result := <-product

    fmt.Println("The Result of this array multipled computation is", result)

}

func factorialViaChannel(value int, factorial chan uint64) {

    var computation uint64 = 1

    if value < 0 {

        fmt.Println("Value can not be less than 0")

    } else {

        for i := 1; i <= value; i++ {

            computation *= uint64(i)

        }

    }

    factorial <- computation

}

func multiply(nums []int64, product chan int64) { //multiply numerous values then send them to a channel

    var result int64 = 1

    for _, val := range nums {

        result *= val

    }

    product <- result //send result to product

}