From 9ad10e8cd990bb25a7760b5e65459edb20681973 Mon Sep 17 00:00:00 2001
From: huangzj <Huangzj@123>
Date: Mon, 13 Jul 2020 17:02:04 +0800
Subject: [PATCH] =?UTF-8?q?feat(Go-StudyExample):=20=E6=96=B0=E5=A2=9E=20?=
 =?UTF-8?q?=E7=BD=91=E7=BB=9C=E5=8F=8A=E7=AB=AF=E5=8F=A3=E6=B5=8B=E8=AF=95?=
 =?UTF-8?q?=E3=80=81=E4=BC=A0=E5=80=BC=E5=92=8C=E4=BC=A0=E5=9D=80=E7=9A=84?=
 =?UTF-8?q?=E6=AF=94=E8=BE=83=E3=80=81=E5=88=87=E7=89=87=E6=B5=8B=E8=AF=95?=
 =?UTF-8?q?=E3=80=81Map=E6=B5=8B=E8=AF=95=E3=80=81=E9=80=9A=E9=81=93?=
 =?UTF-8?q?=E6=B5=8B=E8=AF=95=E3=80=81=E6=B5=8B=E8=AF=95init=E8=B0=83?=
 =?UTF-8?q?=E7=94=A8=E3=80=81=E6=B5=8B=E8=AF=95error=E3=80=81defer?=
 =?UTF-8?q?=E5=85=B3=E9=94=AE=E5=AD=97=E3=80=81recover=E6=B5=8B=E8=AF=95?=
 =?UTF-8?q?=E3=80=81=E6=B5=8B=E8=AF=95=E6=90=BA=E7=A8=8B=E7=9A=84=E5=BC=82?=
 =?UTF-8?q?=E5=B8=B8=E6=8D=95=E8=8E=B7=E3=80=81=E7=9F=A9=E9=98=B5=E6=97=8B?=
 =?UTF-8?q?=E8=BD=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 Main.go                                    |  35 ++++--
 example/originGoLanguage/ChannelTest.go    |  33 +++++
 example/originGoLanguage/DeferTest.go      | 133 +++++++++++++++++++++
 example/originGoLanguage/ErrorTest.go      |  37 ++++++
 example/originGoLanguage/MapTest.go        |  39 ++++++
 example/originGoLanguage/NetTest.go        |  48 ++++++++
 example/originGoLanguage/OriginLangTest.go |  37 ++++++
 example/originGoLanguage/QuoteTest.go      |  42 +++++++
 example/originGoLanguage/SliceTest.go      |  36 ++++++
 example/originGoLanguage/init/InitGo.go    |  14 +++
 example/problem/MatrixRotation.go          |  70 +++++++++++
 readme.md                                  |   3 +
 12 files changed, 514 insertions(+), 13 deletions(-)
 create mode 100644 example/originGoLanguage/ChannelTest.go
 create mode 100644 example/originGoLanguage/DeferTest.go
 create mode 100644 example/originGoLanguage/ErrorTest.go
 create mode 100644 example/originGoLanguage/MapTest.go
 create mode 100644 example/originGoLanguage/NetTest.go
 create mode 100644 example/originGoLanguage/OriginLangTest.go
 create mode 100644 example/originGoLanguage/QuoteTest.go
 create mode 100644 example/originGoLanguage/SliceTest.go
 create mode 100644 example/originGoLanguage/init/InitGo.go
 create mode 100644 example/problem/MatrixRotation.go

diff --git a/Main.go b/Main.go
index c6710da..b1e3379 100644
--- a/Main.go
+++ b/Main.go
@@ -8,26 +8,35 @@ package main
 
 import (
 	"Go-StudyExample/example"
+	"Go-StudyExample/example/originGoLanguage"
+	_ "Go-StudyExample/example/originGoLanguage/init"
+	"Go-StudyExample/example/problem"
 )
 
 func main() {
-	////--------------------------测试mapStructure的功能-----
-	////这边的四种使用方式差别感觉不是很大...
-	//example.MapStructureTestFunc()
-	//example.MapStructureTestFunc1()
-	//example.MapStructureTestFunc2()
-	//example.MapStructureTestFunc3()
-	//
+	//--------------------------测试mapStructure的功能-----
+	//这边的四种使用方式差别感觉不是很大...
+	example.MapStructureTestFunc()
+	example.MapStructureTestFunc1()
+	example.MapStructureTestFunc2()
+	example.MapStructureTestFunc3()
+
 	////--------------------------测试json包的转换功能
-	//example.JsonMarshalTest()
-	//example.JsonUnmarshalTest()
-	//
+	example.JsonMarshalTest()
+	example.JsonUnmarshalTest()
+
 	////克隆测试
-	//example.TestClone()
-	//
+	example.TestClone()
+
 	////二维码测试
-	//example.QrCodeTest()
+	example.QrCodeTest()
 
 	//图片测试
 	example.ImageTest()
+
+	//go原生语言测试
+	originGoLanguage.TestOriginLang()
+
+	//矩阵旋转
+	problem.MatrixRotationTest()
 }
diff --git a/example/originGoLanguage/ChannelTest.go b/example/originGoLanguage/ChannelTest.go
new file mode 100644
index 0000000..c54636d
--- /dev/null
+++ b/example/originGoLanguage/ChannelTest.go
@@ -0,0 +1,33 @@
+/*
+ *  @Author : huangzj
+ *  @Time : 2020/7/13 14:27
+ *  @Description：通道测试
+ */
+
+package originGoLanguage
+
+import "fmt"
+
+func TestChannel() {
+
+	list := []int{0, 1, 45, -12, 33, 90, -22, 100}
+	//通道的初始化
+	c := make(chan int)
+
+	go sum(list[len(list)/2:], c)
+	go sum(list[:len(list)/2], c)
+
+	//通道获取值的赋值
+	x, y := <-c, <-c
+	fmt.Println(x, y, x+y)
+	//通道关闭
+	close(c)
+}
+
+func sum(list []int, c chan int) {
+	sum := 0
+	for _, i := range list {
+		sum += i
+	}
+	c <- sum
+}
diff --git a/example/originGoLanguage/DeferTest.go b/example/originGoLanguage/DeferTest.go
new file mode 100644
index 0000000..a9442c6
--- /dev/null
+++ b/example/originGoLanguage/DeferTest.go
@@ -0,0 +1,133 @@
+/*
+ *  @Author : huangzj
+ *  @Time : 2020/7/13 14:37
+ *  @Description：测试defer关键字、recover
+ */
+
+package originGoLanguage
+
+import (
+	"fmt"
+	"time"
+)
+
+func TestDefer() {
+	//defer会在所有函数执行完成之后才进行执行
+	testDeferExe()
+	//defer产生的值是在对应位置的值，后面的变化不会产生影响
+	fmt.Println(testDeferValue())
+	//defer的执行是先进后出
+	testDeferExeOrder()
+	testDeferRecover()    //defer对异常的捕获
+	testDeferRecoverOut() //外层异常捕获
+}
+
+func TestCtripException() {
+	fmt.Println("测试不进行捕获的情况")
+	testNotDefer()
+
+	fmt.Println("测试进行捕获的情况")
+	testDefer1()
+}
+
+func testNotDefer() {
+	go sayHello()
+
+	for i := 0; i < 10; i++ {
+		time.Sleep(5000)
+		fmt.Println(i)
+	}
+}
+
+func testDefer1() {
+	go sayHello1()
+
+	for i := 0; i < 10; i++ {
+		time.Sleep(5000)
+		fmt.Println(i)
+	}
+}
+
+func sayHello1() {
+	defer func() {
+		if err := recover(); err != nil {
+			fmt.Println("错误信息", err)
+		}
+	}()
+}
+
+func sayHello() {
+	var map1 map[string]int
+	//这里会发生异常
+	fmt.Println(map1["say"])
+}
+
+func testDeferRecover() {
+	//多个panic只会捕获最后一个
+	defer func() {
+		if err := recover(); err != nil {
+			fmt.Println("错误信息是：", err)
+		}
+	}()
+
+	panic1()
+	panic2()
+	panic3()
+
+	//一旦错误被捕获就不会继续运行
+	fmt.Println("我会继续运行")
+
+}
+
+func panic3() {
+	panic("panic3")
+}
+
+func panic2() {
+	panic("panic2")
+}
+
+func panic1() {
+	panic("panic1")
+}
+
+func testDeferRecoverOut() {
+	testDeferRecover()
+
+	fmt.Println("外层继续执行")
+}
+
+func testDeferExe() {
+	i := 0
+	defer func() {
+		fmt.Println(i)
+	}()
+	fmt.Println("i am after")
+}
+
+func testDeferValue() int {
+	i := 0
+	defer func() {
+		fmt.Println("first: ", i)
+	}()
+
+	i++
+	defer func() {
+		fmt.Println("second: ", i)
+	}()
+
+	i++
+	return i
+}
+
+func testDeferExeOrder() {
+	defer func() {
+		fmt.Println("first")
+	}()
+
+	defer func() {
+		fmt.Println("second")
+	}()
+
+	defer fmt.Println("third")
+}
diff --git a/example/originGoLanguage/ErrorTest.go b/example/originGoLanguage/ErrorTest.go
new file mode 100644
index 0000000..b815c4c
--- /dev/null
+++ b/example/originGoLanguage/ErrorTest.go
@@ -0,0 +1,37 @@
+/*
+ *  @Author : huangzj
+ *  @Time : 2020/7/13 14:24
+ *  @Description：go运行时错误测试
+ */
+
+package originGoLanguage
+
+import (
+	"errors"
+	"fmt"
+)
+
+func TestError() {
+	fmt.Println("测试创建一个新的错误")
+	testNewError()
+
+	fmt.Println("")
+}
+
+func testNewError() {
+	var fl1 float32 = 0
+
+	fl2, err := tError(fl1)
+	fmt.Println(fl2, err)
+
+	var flx float32 = 2.2
+	fl3, err1 := tError(flx)
+	fmt.Println(fl3, err1)
+}
+
+func tError(f float32) (float32, error) {
+	if f == 0 {
+		return 0, errors.New("错误")
+	}
+	return f, nil
+}
diff --git a/example/originGoLanguage/MapTest.go b/example/originGoLanguage/MapTest.go
new file mode 100644
index 0000000..ca13145
--- /dev/null
+++ b/example/originGoLanguage/MapTest.go
@@ -0,0 +1,39 @@
+/*
+ *  @Author : huangzj
+ *  @Time : 2020/7/13 14:22
+ *  @Description：
+ */
+
+package originGoLanguage
+
+import "fmt"
+
+func TestMap() {
+	//没有初始化的是nil,不能进行赋值
+	var countryMap1 map[string]string
+	fmt.Println(countryMap1 == nil)
+
+	countryMap := make(map[string]string)
+	countryMap["a"] = "aCountry"
+	countryMap["b"] = "bCountry"
+	countryMap["c"] = "cCountry"
+	countryMap["d"] = "dCountry"
+
+	for key, value := range countryMap {
+		fmt.Println(key + " is " + value)
+	}
+
+	//获取Map的值
+	mValue, ok := countryMap["a"]
+	fmt.Println(ok, mValue)
+
+	mValue1, ok1 := countryMap["aaaa"]
+	fmt.Println(ok1, mValue1)
+
+	//删除map中的元素
+	delete(countryMap, "a")
+	delete(countryMap, "b")
+	for key, value := range countryMap {
+		fmt.Println(key + " is " + value)
+	}
+}
diff --git a/example/originGoLanguage/NetTest.go b/example/originGoLanguage/NetTest.go
new file mode 100644
index 0000000..5e902f5
--- /dev/null
+++ b/example/originGoLanguage/NetTest.go
@@ -0,0 +1,48 @@
+/*
+ *  @Author : huangzj
+ *  @Time : 2020/7/13 11:55
+ *  @Description：
+ */
+
+package originGoLanguage
+
+import (
+	"fmt"
+	"net"
+)
+
+func NetTest() {
+
+	//InterfaceAddrs 返回该系统的网络接口的地址列表。
+	addr, _ := net.InterfaceAddrs()
+	fmt.Println(addr)
+
+	//Interfaces 返回该系统的网络接口列表
+	interfaces, _ := net.Interfaces()
+	fmt.Println(interfaces)
+
+	//LookupAddr 查询某个地址，返回映射到该地址的主机名序列
+	lt, _ := net.LookupAddr("www.alibaba.com")
+	fmt.Println(lt)
+
+	//LookupCNAME函数查询name的规范DNS名（但该域名未必可以访问）。
+	cname, _ := net.LookupCNAME("www.baidu.com")
+	fmt.Println(cname)
+
+	//LookupHost函数查询主机的网络地址序列。
+	host, _ := net.LookupHost("www.baidu.com")
+	fmt.Println(host)
+
+	//LookupIP函数查询主机的ipv4和ipv6地址序列。
+	ip, _ := net.LookupIP("www.baidu.com")
+	fmt.Println(ip)
+
+	//函数将host和port合并为一个网络地址。一般格式为"host:port"；如果host含有冒号或百分号，格式为"[host]:port"。
+	//Ipv6的文字地址或者主机名必须用方括号括起来，如"[::1]:80"、"[ipv6-host]:http"、"[ipv6-host%zone]:80"。
+	hp := net.JoinHostPort("127.0.0.1", "8080")
+	fmt.Println(hp)
+
+	//函数将格式为"host:port"、"[host]:port"或"[ipv6-host%zone]:port"的网络地址分割为host或ipv6-host%zone和port两个部分。
+	shp, port, _ := net.SplitHostPort("127.0.0.1:8080")
+	fmt.Println(shp, " _ ", port)
+}
diff --git a/example/originGoLanguage/OriginLangTest.go b/example/originGoLanguage/OriginLangTest.go
new file mode 100644
index 0000000..abcf9b5
--- /dev/null
+++ b/example/originGoLanguage/OriginLangTest.go
@@ -0,0 +1,37 @@
+/*
+ *  @Author : huangzj
+ *  @Time : 2020/7/13 14:35
+ *  @Description：
+ */
+
+package originGoLanguage
+
+func TestOriginLang() {
+
+	//网络及端口测试
+	NetTest()
+
+	//传值和传址的比较
+	TestQuote()
+
+	//切片测试
+	TestSlice()
+
+	//测试Map
+	TestMap()
+
+	//通道测试
+	TestChannel()
+
+	//测试init，只要在当前结构体中有引入对应的包，就会调用相应的init方法，具体可以查看 上面的import
+
+	//测试error的生成
+	TestError()
+
+	//测试defer关键字
+	TestDefer()
+
+	//测试携程的异常捕获 --- 好像有没有捕获，主函数都可以正常运行
+	TestCtripException()
+
+}
diff --git a/example/originGoLanguage/QuoteTest.go b/example/originGoLanguage/QuoteTest.go
new file mode 100644
index 0000000..570a193
--- /dev/null
+++ b/example/originGoLanguage/QuoteTest.go
@@ -0,0 +1,42 @@
+/*
+ *  @Author : huangzj
+ *  @Time : 2020/7/13 13:43
+ *  @Description：传值和传址
+ */
+
+package originGoLanguage
+
+import "fmt"
+
+func TestQuote() {
+	x, y := "i am x", "i am y"
+
+	fmt.Println("回参的值2")
+	x2, y2 := byValue(x, y)
+	fmt.Println(x2)
+	fmt.Println(y2)
+
+	fmt.Println("传值的方式(原始值)")
+	fmt.Println(x)
+	fmt.Println(y)
+
+	fmt.Println("回参的值")
+	x1, y1 := byAddress(&x, &y)
+	fmt.Println(x1)
+	fmt.Println(y1)
+
+	fmt.Println("传引用的方式(原始值)")
+	fmt.Println(x)
+	fmt.Println(y)
+
+}
+
+func byAddress(i *string, i2 *string) (string, string) {
+	*i2, *i = *i, *i2
+	return *i, *i2
+}
+
+func byValue(s string, s2 string) (string, string) {
+	s, s2 = s2, s
+	return s, s2
+}
diff --git a/example/originGoLanguage/SliceTest.go b/example/originGoLanguage/SliceTest.go
new file mode 100644
index 0000000..051e856
--- /dev/null
+++ b/example/originGoLanguage/SliceTest.go
@@ -0,0 +1,36 @@
+/*
+ *  @Author : huangzj
+ *  @Time : 2020/7/13 14:19
+ *  @Description：切片的测试
+ */
+
+package originGoLanguage
+
+import "fmt"
+
+func TestSlice() {
+	//定义切片
+	var number []int
+	fmt.Println(number)
+
+	number = append(number, 1)
+	number = append(number, 2)
+	number = append(number, 3)
+	number = append(number, 4)
+
+	fmt.Println(len(number), cap(number), number)
+
+	//切片截取
+	fmt.Println(number[0:1])
+	fmt.Println(number[:2])
+	fmt.Println(number[1:])
+
+	//初始化切片
+	number1 := make([]int, len(number), 10)
+	fmt.Println(len(number1), cap(number1), number1)
+
+	//复制切片
+	copy(number1, number)
+	fmt.Println(len(number1), cap(number1), number1)
+
+}
diff --git a/example/originGoLanguage/init/InitGo.go b/example/originGoLanguage/init/InitGo.go
new file mode 100644
index 0000000..76d8310
--- /dev/null
+++ b/example/originGoLanguage/init/InitGo.go
@@ -0,0 +1,14 @@
+package init
+
+import "fmt"
+
+type InitGo struct {
+}
+
+func Test() {
+	fmt.Println(" ")
+}
+
+func init() {
+	fmt.Println("i am init func")
+}
diff --git a/example/problem/MatrixRotation.go b/example/problem/MatrixRotation.go
new file mode 100644
index 0000000..17f6289
--- /dev/null
+++ b/example/problem/MatrixRotation.go
@@ -0,0 +1,70 @@
+/*
+ *  @Author : huangzj
+ *  @Time : 2020/7/13 15:08
+ *  @Description：矩阵旋转问题解决(这个是之前在2048游戏里面)
+ */
+
+package problem
+
+import "fmt"
+
+const (
+	SIZE = 4
+)
+
+func MatrixRotationTest() {
+	//矩阵旋转.....
+	e := [SIZE][SIZE]int{{0, 1, 2, 3}, {4, 5, 6, 7}, {8, 9, 10, 11}, {12, 13, 14, 15}}
+	MatrixRotation(e)
+	MatrixRotationAnti(e)
+	MatrixRotationHalfCircle(e)
+	MatrixRotationAntiHalfCircle(e)
+}
+
+//矩阵旋转-逆时针旋转90度
+func MatrixRotationAnti(matrix [SIZE][SIZE]int) [SIZE][SIZE]int {
+	var temp [SIZE][SIZE]int
+	for i := 0; i < SIZE; i++ {
+		for j := 0; j < SIZE; j++ {
+			temp[SIZE-j-1][i] = matrix[i][j]
+		}
+	}
+	fmt.Println(temp)
+	return temp
+}
+
+//顺时针旋转90度
+func MatrixRotation(matrix [SIZE][SIZE]int) [SIZE][SIZE]int {
+	var temp [SIZE][SIZE]int
+	for i := 0; i < SIZE; i++ {
+		for j := 0; j < SIZE; j++ {
+			temp[j][SIZE-1-i] = matrix[i][j]
+		}
+	}
+	fmt.Println(temp)
+	return temp
+}
+
+//矩阵逆时针旋转180度 --顺逆时针结果一致
+func MatrixRotationAntiHalfCircle(matrix [SIZE][SIZE]int) [SIZE][SIZE]int {
+	var temp [SIZE][SIZE]int
+	for i := 0; i < SIZE; i++ {
+		for j := 0; j < SIZE; j++ {
+			temp[SIZE-1-i][SIZE-1-j] = matrix[i][j]
+		}
+	}
+	fmt.Println(temp)
+	return temp
+}
+
+//矩阵顺时针旋转180度
+func MatrixRotationHalfCircle(matrix [SIZE][SIZE]int) [SIZE][SIZE]int {
+	var temp [SIZE][SIZE]int
+	for i := 0; i < SIZE; i++ {
+		for j := 0; j < SIZE; j++ {
+			temp[SIZE-1-i][SIZE-1-j] = matrix[i][j]
+		}
+	}
+	fmt.Println(temp)
+	return temp
+}
diff --git a/readme.md b/readme.md
index bfc7dfd..d054024 100644
--- a/readme.md
+++ b/readme.md
@@ -11,6 +11,9 @@ json与struct之间转换处理工具使用示例
 2020/7/8 : 添加两种二维码生成使用示例，添加两种图片压缩方式、添加水印示例，添加文字到图片
 
 
+2020/7/13 : 新增 网络及端口测试、传值和传址的比较、切片测试、Map测试、通道测试、测试init调用、测试error、defer关键字、recover测试、测试携程的异常捕获、矩阵旋转
+
+
 # mod vendor模式加载包
 通过go mod的方式加载的github上面的包会有报红的问题，但是包本身是可以运行的，这样就是会有一个问题，如果你想要点击去看方法的内容，没办法做到