update

utils/convert.go

@@ -103,7 +103,7 @@ func BinaryToDecimal(bit string) (num int) {
 	fields := strings.Split(bit, "")
 	lens := len(fields)
 	var tempF float64 = 0
-	for i := 0; i < lens; i++ {
+	for i := range lens {
 		floatNum := String2Float64(fields[i])
 		tempF += floatNum * math.Pow(2, float64(lens-i-1))
 	}