Copy of the Go Language array

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The go language array is a bit different from the C language data, and the assignment of the Go language is a value copy.

Package Mainimport "FMT" Func Main () {var ages [4]int = [4]int{1, 2, 3, 5}var B = agesb[0]++fmt. Println (Ages) fmt. Println (b)}

The result of the output is:

[1 2 3 5]

[2 2 3 5]

If you want to make the ages change, B also follows the change. You can use pointers

Package Mainimport "FMT" Func Main () {    var ages [4]int = [4]int{1, 2, 3, 5}    var b = &ages    b[0]++    fmt. Println (Ages)    FMT. Println (*B)}

Output Result:

[2 2 3 5]

[2 2 3 5]

You can also use slices, because the essence of an array slice is a pointer to an array

Package Mainimport "FMT" Func Main () {    var ages []int = []int{1, 2, 3, 5}    var B = ages    b[0]++    fmt. Println (Ages)    FMT. Println (b)}

Output Result:

[2 2 3 5]

[2 2 3 5]

Note: The assignment between slices and slices is a copy of the value