【GO语言入门到精通】系列教程旨在帮助开发者从入门到精通GO语言的基础知识、高级特性和最佳实践。以下是该系列教程的一些主题和示例代码：
- 安装和配置Go环境
# 下载并安装Go语言
https://golang.org/dl/
# 设置工作环境变量
export GOPATH=/path/to/your/workspace
export PATH=$PATH:$GOPATH/bin
- 编写Hello World程序
package main
import "fmt"
func main() {
fmt.Println("Hello, World!")
}
- 变量和常量
package main
import "fmt"
func main() {
var a int = 10
const b int = 20
fmt.Println("变量a的值:", a)
fmt.Println("常量b的值:", b)
}
- 数据类型和操作符
package main
import "fmt"
func main() {
var a int = 5
var b int = 10
var c int
c = a + b
fmt.Println("加法操作:", c)
c = a * b
fmt.Println("乘法操作:", c)
}
- 控制流程：条件语句和循环
package main
import "fmt"
func main() {
a := 10
b := 20
if a > b {
fmt.Println("a is greater than b")
} else {
fmt.Println("a is not greater than b")
}
for i := 0; i < 10; i++ {
fmt.Println(i)
}
}
- 函数和闭包
package main
import "fmt"
func add(a int, b int) int {
return a + b
}
func main() {
sum := add(10, 20)
fmt.Println("加法函数返回:", sum)
}
- 指针
package main
import "fmt"
func swap(a *int, b *int) {
temp := *a
*a = *b
*b = temp
}
func main() {
x := 10
y := 20
swap(&x, &y)
fmt.Println("交换后x的值:", x)
fmt.Println("交换后y的值:", y)
}
- 数组和切片
package main
import "fmt"
func main() {
var array [5]int = [5]int{10, 20, 30, 40, 50}
slice := array[:3]
fmt.Println("数组:", array)
fmt.Println("切片:", slice)
}
- 字符串操作
package main
import "fmt"
func main() {
str := "Hello, World!"
fmt.Println("字符串长度:", len(str))
fmt.Println("子字符串:", str[7:])
}
- 结构体和方法
package main
import "fmt"
type Rectangle struct {
width int
height int
}
func (r Rectangle) area() int {
return r.width * r.height
}
func main() {
r := Rectangle{width: 10, height: 20}
fm