减少方法名称长度,去掉固定前缀Stock

protocol/model_kline.go

@@ -0,0 +1,135 @@
+package protocol
+
+import (
+	"errors"
+	"fmt"
+	"github.com/injoyai/base/g"
+	"time"
+)
+
+type KlineReq struct {
+	Exchange Exchange
+	Code     string
+	Start    uint16
+	Count    uint16
+}
+
+func (this *KlineReq) Bytes(Type uint8) (g.Bytes, error) {
+	if this.Count > 800 {
+		return nil, errors.New("单次数量不能超过800")
+	}
+	if len(this.Code) != 6 {
+		return nil, errors.New("股票代码长度错误")
+	}
+	data := []byte{this.Exchange.Uint8(), 0x0}
+	data = append(data, []byte(this.Code)...) //这里怎么是正序了？
+	data = append(data, Type, 0x0)
+	data = append(data, 0x01, 0x0)
+	data = append(data, Bytes(this.Start)...)
+	data = append(data, Bytes(this.Count)...)
+	data = append(data, make([]byte, 10)...) //未知啥含义
+	return data, nil
+}
+
+type KlineResp struct {
+	Count uint16
+	List  []*Kline
+}
+
+type Kline struct {
+	Last   Price     //昨日收盘价,这个是列表的上一条数据的收盘价，如果没有上条数据，那么这个值为0
+	Open   Price     //开盘价
+	High   Price     //最高价
+	Low    Price     //最低价
+	Close  Price     //收盘价,如果是当天,则是最新价/实时价
+	Volume float64   //成交量
+	Amount float64   //成交额
+	Time   time.Time //时间
+}
+
+func (this *Kline) String() string {
+	return fmt.Sprintf("%s 昨收盘：%s 开盘价：%s 最高价：%s 最低价：%s 收盘价：%s 涨跌：%s 涨跌幅：%0.2f 成交量：%s 成交额：%s",
+		this.Time.Format("2006-01-02 15:04:05"),
+		this.Last, this.Open, this.High, this.Low, this.Close,
+		this.RisePrice(), this.RiseRate(),
+		FloatUnitString(this.Volume), FloatUnitString(this.Amount),
+	)
+}
+
+// MaxDifference 最大差值，最高-最低
+func (this *Kline) MaxDifference() Price {
+	return this.High - this.Low
+}
+
+// RisePrice 涨跌金额,第一个数据不准，仅做参考
+func (this *Kline) RisePrice() Price {
+	if this.Last == 0 {
+		//稍微数据准确点，没减去0这么夸张，还是不准的
+		return this.Close - this.Open
+	}
+	return this.Close - this.Last
+
+}
+
+// RiseRate 涨跌比例/涨跌幅,第一个数据不准，仅做参考
+func (this *Kline) RiseRate() float64 {
+	return float64(this.RisePrice()) / float64(this.Open) * 100
+}
+
+type kline struct{}
+
+func (kline) Frame(Type uint8, req KlineReq) (*Frame, error) {
+	bs, err := req.Bytes(Type)
+	if err != nil {
+		return nil, err
+	}
+	return &Frame{
+		Control: Control01,
+		Type:    TypeKline,
+		Data:    bs,
+	}, nil
+}
+
+func (kline) Decode(bs []byte, Type uint8) (*KlineResp, error) {
+
+	if len(bs) < 2 {
+		return nil, errors.New("数据长度不足")
+	}
+
+	resp := &KlineResp{
+		Count: Uint16(bs[:2]),
+	}
+
+	bs = bs[2:]
+
+	var last Price //上条数据(昨天)的收盘价
+	for i := uint16(0); i < resp.Count; i++ {
+		k := &Kline{
+			Time: GetTime([4]byte(bs[:4]), Type),
+		}
+
+		var open Price
+		bs, open = GetPrice(bs[4:])
+		var _close Price
+		bs, _close = GetPrice(bs)
+		var high Price
+		bs, high = GetPrice(bs)
+		var low Price
+		bs, low = GetPrice(bs)
+
+		k.Last = last / 10
+		k.Open = (open + last) / 10
+		k.Close = (last + open + _close) / 10
+		k.High = (open + last + high) / 10
+		k.Low = (open + last + low) / 10
+		last = last + open + _close
+
+		k.Volume = getVolume(Uint32(bs[:4]))
+		k.Amount = getVolume(Uint32(bs[4:8]))
+
+		bs = bs[8:]
+		resp.List = append(resp.List, k)
+	}
+
+	return resp, nil
+}