go语言-切片的增加和删除

[platojobs]

arr := [4]int{1,2,3,4}
    slice := arr[:]
	fmt.Println(slice)
	fmt.Printf("slice = %v\n",slice)

	str := "hello"
	fmt.Println(len(str))

	numbers := []int{}
    for i := 0; i < 10; i++ {
        numbers = append(numbers, i)
		fmt.Println(numbers)
        fmt.Printf("len: %d  cap: %d pointer: %p\n", len(numbers), cap(numbers), numbers)
    }
    fmt.Println(numbers)