From 459f9be39ad1fcae0fa21706bd8e73631c15f604 Mon Sep 17 00:00:00 2001
From: xiao_hei_9527 <93132495+xiaohei1263@users.noreply.github.com>
Date: Mon, 28 Nov 2022 19:23:46 +0800
Subject: [PATCH] Create array.go

---
 .../go/chapter_array_and_linkedlist/array.go  | 67 +++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 codes/go/chapter_array_and_linkedlist/array.go

diff --git a/codes/go/chapter_array_and_linkedlist/array.go b/codes/go/chapter_array_and_linkedlist/array.go
new file mode 100644
index 000000000..4fffdb68b
--- /dev/null
+++ b/codes/go/chapter_array_and_linkedlist/array.go
@@ -0,0 +1,67 @@
+package main
+
+import (
+	"fmt"
+	"math/rand"
+	"time"
+)
+
+func randomAccess(nums []int) int {
+	//随机访问元素
+	rand.Seed(time.Now().UnixNano())
+	RandomIndex := rand.Intn(len(nums)) //在区间 [0, len(nums)) 中随机抽取一个数字
+	return nums[RandomIndex]
+}
+func extend(nums []int, enlarge int) []int {
+	//初始化一个扩展长度后的数组
+	res := make([]int, len(nums)+enlarge)
+	//将原数组中的所有元素复制到新数组
+	copy(res, nums)
+	//返回扩展后的新数组
+	return res
+}
+func insert(nums []int, index, num int) {
+	//把索引 index 以及之后的所有元素向后移动一位
+	copy(nums[index+1:], nums[index:])
+	//将 num 赋给 index 处元素
+	nums[index] = num
+}
+func remove(nums []int, index int) {
+	//把索引 index 之后的所有元素向前移动一位
+	copy(nums[index:], nums[index+1:])
+}
+func traverse(nums []int) {
+	count := 0
+	//通过索引遍历数组
+	for i := 0; i < len(nums); i++ {
+		count++
+		fmt.Printf("%d ", nums[i])
+	}
+	fmt.Println()
+	//直接遍历数组
+	for _, i := range nums {
+		count++
+		fmt.Printf("%d ", i)
+	}
+}
+func find(nums []int, target int) int {
+	//在数组中查找指定元素
+	for i := range nums {
+		if nums[i] == target {
+			return i
+		}
+	}
+	return -1
+}
+func main() {
+	//初始化数组
+	arr := []int{1, 2, 3, 4, 5}
+	//var nums []int
+
+	arr = extend(arr, 2)
+
+	insert(arr, 2, 99)
+	remove(arr, 2)
+	traverse(arr)
+	fmt.Printf("%d", find(arr, 5))
+}