新增 HTTPing 延迟测速模式(beta); 新增 IP 机场三字码 colo 筛选功能(beta) (#282)

这两个功能目前仅为测试版，后续会大幅改动，以最终成品为准~

utils/progress.go

@@ -1,19 +1,25 @@
 package utils
 
-import "github.com/cheggaaa/pb/v3"
+import (
+	"fmt"
+
+	"github.com/cheggaaa/pb/v3"
+)
 
 type Bar struct {
 	pb *pb.ProgressBar
 }
 
-func NewBar(count int) *Bar {
-	return &Bar{pb.Simple.Start(count)}
+func NewBar(count int, MyStrStart, MyStrEnd string) *Bar {
+	tmpl := fmt.Sprintf(`{{counters . }}{{ bar . "[" "-" (cycle . "↖" "↗" "↘" "↙" ) "_" "]"}} %s {{string . "MyStr" | green}} %s `, MyStrStart, MyStrEnd)
+	bar := pb.ProgressBarTemplate(tmpl).Start(count)
+	return &Bar{pb: bar}
 }
 
-func (b *Bar) Grow(num int) {
-	b.pb.Add(num)
+func (b *Bar) Grow(num int, MyStrVal string) {
+	b.pb.Set("MyStr", MyStrVal).Add(num)
 }
 
 func (b *Bar) Done() {
 	b.pb.Finish()
-}
+}