obutora

package main

import (
	"context"
	"encoding/json"
	"flag"
	"fmt"
	"io"
	"log"
	"net/http"

obutora

package main

import (
	"fmt"

	"github.com/go-rod/rod"
	"github.com/go-rod/rod/lib/proto"
	"github.com/gocolly/colly/v2"
)

obutora

package main

import (
	"fmt"
	"net/http"
)

// errorとレスポンスをセットにしてラップする構造体
type Result struct {
	Error    error

obutora

package main

import "fmt"

// <- chan int はint型の受信専用チャネル
// この関数は、intを受信する専用のチャネルを返す
func generate(done chan struct{}) <-chan int {
	result := make(chan int)
	go func() {
		defer close(result)

obutora

package main

import (
	"fmt"
	"sync"
)

func main() {
	begin := make(chan bool, 10)
	var wg sync.WaitGroup

obutora

func main() {

	mem := func () uint64 {
		runtime.GC()
		var s runtime.MemStats
		runtime.ReadMemStats(&s)
		
		// Sys 以外にも [Alloc, TotalAlloc, Mallocs, Frees, HeapAlloc, HeapSys, HeapIdle, HeapInuse, HeapReleased, HeapObjects, StackInuse, StackSys, MSpanInuse, MSpanSys, MCacheInuse, MCacheSys, BuckHashSys, GCSys, OtherSys] などがある
		return s.Sys
	}

obutora

package main

import (
	"fmt"
	"time"
)

func main() {
	jst, _ := time.LoadLocation("Asia/Tokyo")