什么是go
Go 是一个开源的编程语言,它能让构造简单、可靠且高效的软件变得容易。
go语言特色
- 简洁、快速、安全
- 并行、有趣、开源
- 内存管理、数组安全、编译迅速
go与java区别
1、函数重载
- Go上不允许函数重载,必须具有方法和函数的唯一名称。
- java允许函数重载。
2、多态
- Java默认允许多态。
- go语言一般不允许不同类型的赋值,即不支持传统的多态。interface是一个例外,可以用不同类型进行赋值只要一个类型实现了该接口,我们就可以将该类型的变量赋给该接口的变量。
3、路由配置
- Go语言使用HTTP协议进行路由配置;
- java使用Akka.routing.ConsistentHashingRouter和Akka.routing.ScatterGatherFirstCompletedRouter进行路由配置。
4、可扩展性
- Go代码可以自动扩展到多个核心;
- Java并不总是具有足够的可扩展性。
5、对象传递:
- Java中对象的方法会有隐藏的this指针传递
- Go语言中面向对象只是换了一种语法形式来表达,没有隐藏的this指针,即方法施加的目标显示传递,没有被隐藏。另外方法施加的目标不一定是指针(java传递的是指向对象的指针),如果是指针也可以不命名为this。
6、继承:
- Java的继承通过extends关键字完成,不支持多继承。
- Go语言的继承通过匿名组合完成:基类以Struct的方式定义,子类只需要把基类作为成员放在子类的定义中,并且可以通过调整基类成员的位置改变内存布局,支持多继承。
7、接口:
- java中的接口作为不同组件中的契约存在,是强制的,类必须声明实现了某接口,需要从该接口继承。哪怕是两个一模一样的接口但只有名字不一样,也只能根据类所声明的实现接口是否包括该接口来决定该类是否实现该接口,叫做“侵入式”的接口
- GO语言中采用的是非侵入式接口,一个类只需要实现接口要求的所有函数,那我们就说该类实现了该接口。GO语言可以通过接口进行接口查询(接口指向的对象是否实现了另外的接口),类型查询等。
go环境安装
只需下载即可,环境变量会自动添加。
【本人亲自测试过,会自动的在高级环境中的path中会指定go的bin目录】
下载地址:
https://golang.google.cn/dl/
golang软件下载
本人采用golang的idea,你们也可以采用vscode,idea下载插件即可
官网:
https://www.jetbrains.com/go/
激活成功教程码:
33MEHOB8W0-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-KgT7Aup6xVz89IAUiblqz3L1MhZRucjmvakY1XhQegglFthXYXNDSF0n8PSZO9eQMEcXYpAMdSbLBsM3I/GJ6ykW/MZfcX1mLSnN8UgrIGIJKhRJJ3OxRWHhE5pA3JXMHR9gnqdU2Hcb4/0gop7xEsadRA3bk4RQSWQF6xpOBisPYjN21equhyxZ5W3c5wG8ziDdcIyqLFgFxG4cdBIrKVkfQT+eX1Xr/ONDgQALXgKOJqZiSirfP/BVRTCZ2xqTf2uHHtv9/AUc/JbGxJlSHQag0doBRFZ+vLaxFxyci1P2AZSfGnPQ+zMHEoGevKnJ8xR7L5mmCVAeiCG2js5hzA==-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
hello go测试
//注意:package 会自动生成包名,此次需要更换成main执行 package main import "fmt" //程序入口 func main() { fmt.Print("hello golang") }
JetBrains激活码
需要注意的是 `{ `不能单独放在一行。否则会报错
今天的文章
JetBrains激活码(GO语言的安装与入门含golang的激活成功教程码)分享到此就结束了,感谢您的阅读。
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