Introduction
A sample go program is show here.
```go
package main
import "fmt"
func main() {
message := greetMe("world")
fmt.Println(message)
}
func greetMe(name string) string {
return "Hello, " + name + "!"
}
```
Run the program as below:
```bash
$ go run hello.go
```
**Normal Declaration:**
```go
var msg string
msg = "Hello"
```
---
**Shortcut:**
```go
msg := "Hello"
```
```go
const Phi = 1.618
```