bam6o0

//Hello World!
package main

import "fmt"

func main() {
	fmt.Println("Hello World!")
}

bam6o0

package main

import "fmt"

func main() {

	var b bool

	b = true
	b = false

bam6o0

package main

import "fmt"

func main() {
	var i int = 12345

	var i64 int64 = int64(i)

	fmt.Println(i64)

bam6o0

package main

import "fmt"

func main() {
	var str string
	str = "あ"
	str = str + "い"
	str += "う"

bam6o0

package main

import "fmt"

func main() {
	var en string = "golang"
	var ja string = "Go言語"

	fmt.Println(en, "len", len(en))
	fmt.Println(ja, "len", len(ja))

bam6o0

package main

import "fmt"
import "unicode/utf8"

func main() {
	var ja string = "Go言語"
	fmt.Println(ja, "len", utf8.RuneCountInString(ja))
}

bam6o0

package main

import "fmt"

func main() {
	//int型からmyInteger型を宣言
	type myInteger int

	//myInteger型の変数を作成
	var i myInteger = 123

bam6o0

package main

import "fmt"

func main() {
	//int型で宣言
	var i int = 1234

	//int型からunit32型への変換
	var u uint32 = uint32(i)

bam6o0

package main

import "fmt"

func main() {
	const (
		ZERO  = iota
		ONE   = iota
		TWO   = iota
		THREE = iota

bam6o0

package main

import "fmt"

//先頭大文字であるためエクスポートされる
const Export = true

//先頭小文字であるためエクスポートされない
const export = false