我正在使用 Channels 和 Go Routines 來練習偽并發。出于某種原因，我的 Factorial 函數似乎返回一個地址，而不是實際的整數值。這是我的代碼：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}這是我的結果：$ go run MultipleConcurrency.goThe Factorial of 8 is 0xc42000c028The Result of this array multipled computation is 362880為什么打印內存地址而不是值？我有點困惑。謝謝！
2 回答
繁華開滿天機
TA貢獻1816條經驗 獲得超4個贊
替換這一行：
f := c //Assign go channel value to f
和
f := <-c //Assign go channel value to f
并初始化變量 -computation值1在factorialViaChannel()
像這樣：
var computation uint64 = 1
拉丁的傳說
TA貢獻1789條經驗 獲得超8個贊
我想通了，問題已在下面更正：
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
}
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