The array _golang of the Go Language Foundation

1. Declare an array of var a[2] int or a:=[2]int{1,2}

2. Array index
Arrays are indexed to create the following diagram

Let's do one more test.

The 3.go language can automatically compute the length of an array, for example, you know that there are several examples of arrays that can be declared

Copy Code code as follows:

A:=[...] INT{1,2,3,45}

4. Array of pointers

Copy Code code as follows:

a:=[3]int{1,2,3}
var p * [3]int = &a//This is an array of pointers we can see directly output pointers to arrays
X, y: =1, 3
A: = [...] *int{&x, &y}
Str. Println (a)//output such [0xc080000068 0xc080000070] address this is the array pointer

You can use the New keyword to declare

Copy Code code as follows:

P: = new ([10]int)
Fmt. PRINTLN (p)//&[0 0 0 0 0 0 0 0 0 0] Output a pointer

Multidimensional arrays are similar to other languages

Copy Code code as follows:

c: = [3][2]int{{1:2}, {2, 1}, {2, 2}}
Fmt. PRINTLN (c)//output [[0 2] [2 1] [2 2]]

The go language version of the bubble algorithm

Copy Code code as follows:

Package Main

Import "FMT"

Func Main () {
A: = [...] Int{3, 2, 5, 8, 6}
Fmt. Println (a)
Num: = Len (a)
For I: = 0; i < num; i++ {
For J: = i + 1; J < num; J + + {
If a[i] < A[j] {
Temp: = A[i]
A[i] = A[j]
A[J] = Temp
}
}
}
Fmt. Println (a)
}