Limbaje de programare
Limbaj de programare rapid, cu tipizare statică, de la Google, pentru construirea de aplicații eficiente și scalabile
Compile millions of lines in seconds with dependency management
Lightweight concurrency with CSP-style message passing
Single binary with no dependencies for easy deployment
HTTP servers, JSON, crypto, testing, and more built-in
Compile for Linux, macOS, Windows, ARM from any platform
go fmt, go test, go mod, race detector, profiler included
# Download latest (check golang.org/dl)
wget https://go.dev/dl/go1.21.5.linux-amd64.tar.gz
# Extract to /usr/local
sudo rm -rf /usr/local/go
sudo tar -C /usr/local -xzf go1.21.5.linux-amd64.tar.gz
# Add to PATH
echo 'export PATH=$PATH:/usr/local/go/bin' >> ~/.bashrc
echo 'export GOPATH=$HOME/go' >> ~/.bashrc
source ~/.bashrc
# Verify
go versionpackage main
import "fmt"
func main() {
fmt.Println("Hello, World!")
}go run main.go
go build -o myapp main.go
./myappmyapp/
├── go.mod # Module definition
├── go.sum # Dependency checksums
├── main.go # Entry point
├── internal/ # Private packages
└── cmd/ # CLI commandsmodule github.com/user/myapp
go 1.21
require (
github.com/gin-gonic/gin v1.9.1
github.com/lib/pq v1.10.9
)package main
import (
"net/http"
"github.com/gin-gonic/gin"
)
func main() {
r := gin.Default()
r.GET("/", func(c *gin.Context) {
c.JSON(200, gin.H{"message": "Hello"})
})
r.Run(":8080")
}package main
import (
"fmt"
"time"
)
func worker(id int, jobs <-chan int, results chan<- int) {
for j := range jobs {
fmt.Printf("Worker %d processing job %d\n", id, j)
time.Sleep(time.Second)
results <- j * 2
}
}
func main() {
jobs := make(chan int, 100)
results := make(chan int, 100)
// Start 3 workers
for w := 1; w <= 3; w++ {
go worker(w, jobs, results)
}
// Send 5 jobs
for j := 1; j <= 5; j++ {
jobs <- j
}
close(jobs)
// Collect results
for a := 1; a <= 5; a++ {
<-results
}
}Începe în câteva minute cu procesul nostru simplu de implementare VPS
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