From ca9bd89b9da21e3542c40a9e4efd613ac6e7cd58 Mon Sep 17 00:00:00 2001
From: nannanwu <mail@nannanwu.com>
Date: Fri, 14 Nov 2025 20:55:28 +0800
Subject: [PATCH] =?UTF-8?q?=E5=88=87=E7=89=87=E5=AE=8C=E7=BB=93?=
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---
 main.go | 46 ++++++++++++++++++++++++++++++++++------------
 1 file changed, 34 insertions(+), 12 deletions(-)

diff --git a/main.go b/main.go
index c8f0781..a2e9c2d 100644
--- a/main.go
+++ b/main.go
@@ -1,21 +1,43 @@
 package main
 
-import "fmt"
+import (
+	"fmt"
+)
 
 func main() {
+	//直接创建切片 切片类型 切片长度 切片容量
+	slice := make([]int, 10, 20)
+	fmt.Println(slice)
+	fmt.Println("切片长度:", len(slice))
+	fmt.Println("切片容量:", cap(slice))
+
+	slice[0] = 66
+	slice[1] = 88
+	fmt.Println("slice", slice)
+
+	//定义数组
 	var intarr = [6]int{1, 2, 3, 4, 5, 6}
-	slice := intarr[2:5]
-	fmt.Println("intarr:", intarr)
-	fmt.Println("slice:", slice)
-	fmt.Println("slice len:", len(slice))
-	fmt.Println("slice cap:", cap(slice))
+	//定义切片
+	var slice2 = intarr[1:2]
+	slice2[0] = 66
+	fmt.Println("intarr", intarr)
+	fmt.Println("slice2", slice2)
 
-	fmt.Printf("数组中下标为3位置的地址%p\n", &intarr[3])
-	fmt.Printf("切片中下标为1位置的地址%p\n", &slice[1])
+	i := 10
+	//底层追加元素的时候进行扩容，老数组扩容为新数组
+	slice3 := append(slice2, i)
+	fmt.Println("slice3", slice3)
 
-	//修改切片位置1的数值
-	slice[1] = 16
-	fmt.Println("intarr:", intarr)
-	fmt.Println("slice:", slice)
+	//给自己追加
+	//底层是新数组，不能直接维护，需要通过切片间接维护操作
+	slice3 = append(slice3, 11)
+	fmt.Println("slice3", slice3)
+	//...代表追加是是一个切片
+	slice3 = append(slice3, slice2...)
+	fmt.Println("slice3", slice3)
+
+	//拷贝
+	copy(slice3, slice)
+	fmt.Println("slice3", slice3)
 
 }