Golangの言語構造と変数について語る

package main // Declare the main package, indicating that it is currently an executable program

import "fmt" // import the built-in fmt package

func main(){ // The main function, which is the entry point for program execution
    fmt.Println("Hello World! ") // Print Hello World! in the terminal.
}

func main()
{ // will report an error
    fmt.Println("Hello World! ") // Print Hello World! in the terminal
}

package main // Declare the main package, indicating that it is currently an executable program

import "fmt" // import the built-in fmt package

func main(){ // The main function, which is the entry point for program execution

	fmt.Println("Press enter to exit:")  
	fmt.Scanln()// Press enter to exit
}

var a int

. \test.go:7:6: a declared but not used

package main // Declare the main package, indicating that it is currently an executable program

import "fmt"

func main(){ // The main function, which is the entry point for program execution
	var a int
	fmt.Println(a)
}

var a int = 3

var a, b int = 3, 4

var a, b = 3, 4

a, b, c := 3, 4,"c"

var (
		a = 3
		b = 4
	    )

var 1a bool