go 的變參函數

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package mainimport "fmt"// Here's a function that will take an arbitrary number// of `ints` as arguments.func sum(nums ...int) {fmt.Print(nums, " ")total := 0for _, num := range nums {total += num}fmt.Println(total)}func main() {// Variadic functions can be called in the usual way// with individual arguments.sum(1, 2)sum(1, 2, 3)// If you already have multiple args in a slice,// apply them to a variadic function using// `func(slice...)` like this.nums := []int{1, 2, 3, 4}sum(nums...)}

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package main import "fmt" // Here's a function that will take an arbitrary number// of `ints` as arguments.func sum(nums ...int) {fmt.Print(nums, " ")total := 0for _, num := range nums {total += num}fmt.Println(total)} func main() { // Variadic functions can be called in the usual way// with individual arguments.sum(1, 2)sum(1, 2, 3) // If you already have multiple args in a slice,// apply them to a variadic function using// `func(slice...)` like this.nums := []int{1, 2, 3, 4}sum(nums...)}

輸出的值：

[1 2] 3[1 2 3] 6[1 2 3 4] 10

123	[1 2] 3[1 2 3] 6[1 2 3 4] 10

 

go 的變參函數