增加income,用于计算未来收益

extend/income.go

@@ -0,0 +1,65 @@
+package extend
+
+import (
+	"fmt"
+	"github.com/injoyai/tdx/protocol"
+	"time"
+)
+
+func DoIncomes(ks Klines, startAt time.Time, days ...int) Incomes {
+	year, month, day := startAt.Date()
+	start := time.Date(year, month, day, 15, 0, 0, 0, startAt.Location()).Unix()
+	for i, v := range ks {
+		if v.Date >= start {
+			ks = ks[i:]
+			break
+		}
+	}
+
+	ls := Incomes{}
+
+	for _, v := range days {
+		if v < len(ks) {
+			x := ks[v]
+			ls = append(ls, &Income{
+				Offset: v,
+				Time:   time.Unix(x.Date, 0),
+				Source: protocol.K{
+					Open:  ks[0].Open,
+					High:  ks[0].High,
+					Low:   ks[0].Low,
+					Close: ks[0].Close,
+				},
+				Current: protocol.K{
+					Open:  x.Open,
+					High:  x.High,
+					Low:   x.Low,
+					Close: x.Close,
+				},
+			})
+		}
+	}
+
+	return ls
+}
+
+type Incomes []*Income
+
+type Income struct {
+	Offset  int        //偏移量
+	Time    time.Time  //时间
+	Source  protocol.K //源
+	Current protocol.K //当前
+}
+
+func (this *Income) String() string {
+	return fmt.Sprintf("偏移: %d, 时间: %s, 涨幅: %.1f%%", this.Offset, this.Time.Format(time.DateOnly), this.RiseRate()*100)
+}
+
+func (this *Income) Rise() protocol.Price {
+	return this.Current.Close - this.Source.Close
+}
+
+func (this *Income) RiseRate() float64 {
+	return this.Rise().Float64() / this.Source.Close.Float64()
+}