标签：fn2 nums 变形 fmt len int func 5week
- // 可变参数用途：收集实参放到1个切片里，len=cap；切片不是要让你修改的，而是让你遍历的
package main
import "fmt"
func fn1(nums ...int) {
fmt.Printf("%T %v %v %v\n", nums, nums, len(nums), cap(nums))
}
func fn2(x, y int, nums ...int) {
fmt.Printf("%d,%d,%T %v %v %v\n", x, y, nums, nums, len(nums), cap(nums))
}
func main() {
// fn1(1, 3, 5, 6)
// fn2() //不行
// fn2(1)//不行
fn2(1, 2) //可以
fn2(3, 4, 5, 6, 7)
}
标签：fn2,
nums,
变形,
fmt,
len,
int,
func,
5week
From： https://www.cnblogs.com/john5yang/p/17054542.html