golang中的可变参数函数
问题内容
package main import ( "fmt" ) type isum interface { sum() int } type sumimpl struct { num int } func (s sumimpl) sum() int { return s.num } func main() { nums := []int{1, 2} variadicexample1(nums...) impl1 := sumimpl{num: 1} impl2 := sumimpl{num: 2} variadicexample2(impl1, impl2) impls := []sumimpl{ { num: 1, }, { num: 2, }, } variadicexample2(impls...) } func variadicexample1(nums ...int) { fmt.print(nums, " ") total := 0 for _, num := range nums { total += num } fmt.println(total) } func variadicexample2(nums ...isum) { fmt.print(nums, " ") total := 0 for _, num := range nums { total += num.sum() } fmt.println(total) }登录后复制
