Can Go language slices be multi-dimensional?

Can. Slices in the Go language support multi-dimensionality. The syntax format for declaring a multi-dimensional slice is "var sliceName [][]...[]sliceType"; if it is a two-dimensional slice, then each element of the slice is a one-dimensional slice. If the slice is a 3D slice, then each element is a 2D slice.

The operating environment of this tutorial: Windows 7 system, GO version 1.18, Dell G3 computer.

Go language slicing supports multi-dimensional . The syntax format for declaring a multi-dimensional slice is as follows:

var sliceName [][]...[]sliceType

Among them, sliceName is the name of the slice , sliceType is the type of slice, each [ ] represents a dimension, and the number of dimensions of a slice requires several [ ].

If it is a two-dimensional slice, then each element of the slice is a one-dimensional slice. If the slice is a three-dimensional slice, then each element is a two-dimensional slice.

Generally we use two-dimensional slices the most, three-dimensional slices are rarely used, and more-dimensional slices are almost never used.

Go language two-dimensional slice

Definition

var varName [][]Type

Parameters	Description
var	# Keywords used to define slices.
varName	Slice name.
Type	#The type of each element in the two-dimensional slice.

Description

• Define a two-dimensional slice varName, the type of each element of the slice is Type.

Go language three-dimensional slice

Definition

var varName [][][]Type

Explanation

• ##Definition A three-dimensional slice varName, each element of the slice is a two-dimensional slice.

Case

• Create a two-dimensional slice

Create a two-dimensional slice When slicing, you can directly initialize

package main
import (
	"fmt"
)
func main() {
	//创建二维切片时，可以直接初始化
	var sliceHaiCoder = [][]string{{"Server", "Python"}, {"Server", "Golang"}, {"JavaScript", "Vue"}}
	fmt.Println("sliceHaiCoder =", sliceHaiCoder)
}

We created a two-dimensional slice with three rows and two columns. Each slice element is of string type, and then we use the slice initialization method to assign values ​​to slices. Finally, we use print to print the contents of the slice.

• Create three-dimensional slices

package main
import (
	"fmt"
)
func main() {
	//创建一个三维切片
	var arrHaiCoder = [][][]string{{{"JavaScript", "Vue"}}, {{"Python", "Golang"}}}
	fmt.Println("arrHaiCoder =", arrHaiCoder)
}

##[Related recommendations:

Go video tutorial

、programming teaching】

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