main.go 源码
// Copyright © 2018 Inanc Gumus
// Learn Go Programming Course
// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
//
// For more tutorials : https://learngoprogramming.com
// In-person training : https://www.linkedin.com/in/inancgumus/
// Follow me on twitter: https://twitter.com/inancgumus
package main
import "fmt"
func main() {
{
// its length is part of its type
var nums [5]int
fmt.Printf("nums array: %#v\n", nums)
}
{
// its length is not part of its type
var nums []int
fmt.Printf("nums slice: %#v\n", nums)
fmt.Printf("len(nums) : %d\n", len(nums))
// won't work: the slice is nil.
// fmt.Printf("nums[0]: %d\n", nums[0])
// fmt.Printf("nums[1]: %d\n", nums[1])
}
}
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