原文策略源码如下：
#多因子选股改进型
from kuanke.wizard import *
from jqdata import *
import numpy as np
import pandas as pd
import talib
import datetime

初始化函数，设定要操作的股票、基准等等

def initialize(context):
# 设定基准
set_benchmark(‘000300.XSHG’)
# 设定滑点
set_slippage(FixedSlippage(0.02))
# True为开启动态复权模式，使用真实价格交易
set_option(‘use_real_price’, True)
# 设定成交量比例
set_option(‘order_volume_ratio’, 1)
# 股票类交易手续费是：买入时佣金万分之三，卖出时佣金万分之三加千分之一印花税, 每笔交易佣金最低扣5块钱
set_order_cost(OrderCost(open_tax=0, close_tax=0.001, open_commission=0.0003, close_commission=0.0003, min_commission=5), type=‘stock’)
# 个股最大持仓比重
g.security_max_proportion = 1
# 选股频率
g.check_stocks_refresh_rate = 1
# 买入频率
g.buy_refresh_rate = 1
# 卖出频率
g.sell_refresh_rate = 1
# 最大建仓数量
g.max_hold_stocknum = 5

# 选股频率计数器
g.check_stocks_days = 0 
# 买卖交易频率计数器
g.buy_trade_days=0
g.sell_trade_days=0 
# 获取未卖出的股票
g.open_sell_securities = [] 
# 卖出股票的dict
g.selled_security_list={}# 股票筛选初始化函数
check_stocks_initialize()
# 股票筛选排序初始化函数
check_stocks_sort_initialize()
# 出场初始化函数
sell_initialize()
# 入场初始化函数
buy_initialize()
# 风控初始化函数
risk_management_initialize()# 关闭提示
log.set_level('order', 'error')# 运行函数
run_daily(sell_every_day,'open') #卖出未卖出成功的股票
run_daily(risk_management, 'every_bar') #风险控制
run_daily(check_stocks, 'open') #选股
run_daily(trade, 'open') #交易  
run_daily(selled_security_list_count, 'after_close') #卖出股票日期计数 

股票筛选初始化函数

def check_stocks_initialize():
# 是否过滤停盘
g.filter_paused = True
# 是否过滤退市
g.filter_delisted = True
# 是否只有ST
g.only_st = False
# 是否过滤ST
g.filter_st = True
# 股票池
g.security_universe_index = [“000300.XSHG”]
g.security_universe_user_securities = []
# 行业列表
g.industry_list = [“801010”,“801020”,“801030”,“801040”,“801050”,“801080”,“801110”,“801120”,“801130”,“801140”,“801150”,“801160”,“801170”,“801180”,“801200”,“801210”,“801230”,“801710”,“801720”,“801730”,“801740”,“801750”,“801760”,“801770”,“801780”,“801790”,“801880”,“801890”]
# 概念列表
g.concept_list = []

股票筛选排序初始化函数

def check_stocks_sort_initialize():
# 总排序准则： desc-降序、asc-升序
g.check_out_lists_ascending = ‘desc’

出场初始化函数

def sell_initialize():
# 设定是否卖出buy_lists中的股票
g.sell_will_buy = False

# 固定出仓的数量或者百分比
g.sell_by_amount = None
g.sell_by_percent = None

入场初始化函数

def buy_initialize():
# 是否可重复买入
g.filter_holded = False

# 委托类型
g.order_style_str = 'by_cap_mean'
g.order_style_value = 100

风控初始化函数

def risk_management_initialize():
# 策略风控信号
g.risk_management_signal = True

# 策略当日触发风控清仓信号
g.daily_risk_management = True# 单只最大买入股数或金额
g.max_buy_value = None
g.max_buy_amount = None

卖出未卖出成功的股票

def sell_every_day(context):
g.open_sell_securities = list(set(g.open_sell_securities))
open_sell_securities = [s for s in context.portfolio.positions.keys() if s in g.open_sell_securities]
if len(open_sell_securities)>0:
for stock in open_sell_securities:
order_target_value(stock, 0)
g.open_sell_securities = [s for s in g.open_sell_securities if s in context.portfolio.positions.keys()]
return

风控

def risk_management(context):
### _风控函数筛选-开始 ###
### _风控函数筛选-结束 ###
return

股票筛选

def check_stocks(context):
if g.check_stocks_days%g.check_stocks_refresh_rate != 0:
# 计数器加一
g.check_stocks_days += 1
return
# 股票池赋值
g.check_out_lists = get_security_universe(context, g.security_universe_index, g.security_universe_user_securities)
# 行业过滤
g.check_out_lists = industry_filter(context, g.check_out_lists, g.industry_list)
# 概念过滤
g.check_out_lists = concept_filter(context, g.check_out_lists, g.concept_list)
# 过滤ST股票
g.check_out_lists = st_filter(context, g.check_out_lists)
# 过滤退市股票
g.check_out_lists = delisted_filter(context, g.check_out_lists)
# 财务筛选
g.check_out_lists = financial_statements_filter(context, g.check_out_lists)
# 行情筛选
g.check_out_lists = situation_filter(context, g.check_out_lists)
# 技术指标筛选
g.check_out_lists = technical_indicators_filter(context, g.check_out_lists)
# 形态指标筛选函数
g.check_out_lists = pattern_recognition_filter(context, g.check_out_lists)
# 其他筛选函数
g.check_out_lists = other_func_filter(context, g.check_out_lists)

# 排序
input_dict = get_check_stocks_sort_input_dict()
g.check_out_lists = check_stocks_sort(context,g.check_out_lists,input_dict,g.check_out_lists_ascending)# 计数器归一
g.check_stocks_days = 1
return

交易函数

def trade(context):

初始化买入列表

buy_lists = []# 买入股票筛选
if g.buy_trade_days%g.buy_refresh_rate == 0:# 获取 buy_lists 列表buy_lists = g.check_out_lists# 过滤ST股票buy_lists = st_filter(context, buy_lists)# 过滤停牌股票buy_lists = paused_filter(context, buy_lists)# 过滤退市股票buy_lists = delisted_filter(context, buy_lists)# 过滤涨停股票buy_lists = high_limit_filter(context, buy_lists)### _入场函数筛选-开始 ###### _入场函数筛选-结束 #### 卖出操作
if g.sell_trade_days%g.sell_refresh_rate != 0:# 计数器加一g.sell_trade_days += 1
else:# 卖出股票sell(context, buy_lists)# 计数器归一g.sell_trade_days = 1# 买入操作
if g.buy_trade_days%g.buy_refresh_rate != 0:# 计数器加一g.buy_trade_days += 1
else:# 卖出股票buy(context, buy_lists)# 计数器归一g.buy_trade_days = 1

卖出股票日期计数

def selled_security_list_count(context):
g.daily_risk_management = True
if len(g.selled_security_list)>0:
for stock in g.selled_security_list.keys():
g.selled_security_list[stock] += 1

################################## 选股函数群 ##################################

财务指标筛选函数

def financial_statements_filter(context, security_list):
### _财务指标筛选函数-开始 ###
security_list = financial_data_filter_dayu(security_list, indicator.inc_revenue_year_on_year, 5)
security_list = financial_data_filter_dayu(security_list, valuation.market_cap, 30)
security_list = financial_data_filter_dayu(security_list, valuation.pe_ratio, 3)
security_list = financial_data_filter_dayu(security_list, indicator.roe, 4)
### _财务指标筛选函数-结束 ###

# 返回列表
return security_list

行情筛选函数

def situation_filter(context, security_list):
### _行情筛选函数-开始 ###
### _行情筛选函数-结束 ###

# 返回列表
return security_list

技术指标筛选函数

def technical_indicators_filter(context, security_list):
### _技术指标筛选函数-开始 ###
### _技术指标筛选函数-结束 ###

# 返回列表
return security_list

形态指标筛选函数

def pattern_recognition_filter(context, security_list):
### _形态指标筛选函数-开始 ###
### _形态指标筛选函数-结束 ###

# 返回列表
return security_list

其他方式筛选函数

def other_func_filter(context, security_list):
### _其他方式筛选函数-开始 ###
### _其他方式筛选函数-结束 ###

# 返回列表
return security_list

获取选股排序的 input_dict

def get_check_stocks_sort_input_dict():
input_dict = {
indicator.inc_net_profit_year_on_year:(‘desc’,30),
valuation.market_cap:(‘desc’,20),
valuation.pe_ratio:(‘desc’,25),
indicator.roe:(‘desc’,25),
}
# 返回结果
return input_dict

################################## 交易函数群 ##################################

交易函数 - 出场

def sell(context, buy_lists):
# 获取 sell_lists 列表
init_sl = context.portfolio.positions.keys()
sell_lists = context.portfolio.positions.keys()

# 判断是否卖出buy_lists中的股票
if not g.sell_will_buy:sell_lists = [security for security in sell_lists if security not in buy_lists]### _出场函数筛选-开始 ###
### _出场函数筛选-结束 #### 卖出股票
if len(sell_lists)>0:for stock in sell_lists:sell_by_amount_or_percent_or_none(context,stock, g.sell_by_amount, g.sell_by_percent, g.open_sell_securities)# 获取卖出的股票, 并加入到 g.selled_security_list中
selled_security_list_dict(context,init_sl)return

交易函数 - 入场

def buy(context, buy_lists):
# 风控信号判断
if not g.risk_management_signal:
return

# 判断当日是否触发风控清仓止损
if not g.daily_risk_management:return
# 判断是否可重复买入
buy_lists = holded_filter(context,buy_lists)# 获取最终的 buy_lists 列表
Num = g.max_hold_stocknum - len(context.portfolio.positions)
buy_lists = buy_lists[:Num]# 买入股票
if len(buy_lists)>0:# 分配资金result = order_style(context,buy_lists,g.max_hold_stocknum, g.order_style_str, g.order_style_value)for stock in buy_lists:if len(context.portfolio.positions) < g.max_hold_stocknum:# 获取资金Cash = result[stock]# 判断个股最大持仓比重value = judge_security_max_proportion(context,stock,Cash,g.security_max_proportion)# 判断单只最大买入股数或金额amount = max_buy_value_or_amount(stock,value,g.max_buy_value,g.max_buy_amount)# 下单order(stock, amount, MarketOrderStyle())
return

################################### 公用函数群 ##################################

排序

def check_stocks_sort(context,security_list,input_dict,ascending=‘desc’):
if (len(security_list) == 0) or (len(input_dict) == 0):
return security_list
else:
# 生成 key 的 list
idk = list(input_dict.keys())
# 生成矩阵
a = pd.DataFrame()
for i in idk:
b = get_sort_dataframe(security_list, i, input_dict[i])
a = pd.concat([a,b],axis = 1)
# 生成 score 列
a[‘score’] = a.sum(1,False)
# 根据 score 排序
if ascending == ‘asc’:# 升序
a = a.sort([‘score’],ascending = True)
elif ascending == ‘desc’:# 降序
a = a.sort([‘score’],ascending = False)
# 返回结果
return list(a.index)

过滤同一标的继上次卖出N天不再买入

def filter_n_tradeday_not_buy(security, n=0):
try:
if (security in g.selled_security_list.keys()) and (g.selled_security_list[security]<n):
return False
return True
except:
return True

是否可重复买入

def holded_filter(context,security_list):
if not g.filter_holded:
security_list = [stock for stock in security_list if stock not in context.portfolio.positions.keys()]
# 返回结果
return security_list

卖出股票加入dict

def selled_security_list_dict(context,security_list):
selled_sl = [s for s in security_list if s not in context.portfolio.positions.keys()]
if len(selled_sl)>0:
for stock in selled_sl:
g.selled_security_list[stock] = 0

过滤停牌股票

def paused_filter(context, security_list):
if g.filter_paused:
current_data = get_current_data()
security_list = [stock for stock in security_list if not current_data[stock].paused]
# 返回结果
return security_list

过滤退市股票

def delisted_filter(context, security_list):
if g.filter_delisted:
current_data = get_current_data()
security_list = [stock for stock in security_list if not ((‘退’ in current_data[stock].name) or (’*’ in current_data[stock].name))]
# 返回结果
return security_list

过滤ST股票

def st_filter(context, security_list):
if g.only_st:
current_data = get_current_data()
security_list = [stock for stock in security_list if current_data[stock].is_st]
else:
if g.filter_st:
current_data = get_current_data()
security_list = [stock for stock in security_list if not current_data[stock].is_st]
# 返回结果
return security_list

过滤涨停股票

def high_limit_filter(context, security_list):
current_data = get_current_data()
security_list = [stock for stock in security_list if not (current_data[stock].day_open >= current_data[stock].high_limit)]
# 返回结果
return security_list

获取股票股票池

def get_security_universe(context, security_universe_index, security_universe_user_securities):
temp_index = []
for s in security_universe_index:
if s == ‘all_a_securities’:
temp_index += list(get_all_securities([‘stock’], context.current_dt.date()).index)
else:
temp_index += get_index_stocks(s)
for x in security_universe_user_securities:
temp_index += x
return sorted(list(set(temp_index)))

行业过滤

def industry_filter(context, security_list, industry_list):
if len(industry_list) == 0:
# 返回股票列表
return security_list
else:
securities = []
for s in industry_list:
temp_securities = get_industry_stocks(s)
securities += temp_securities
security_list = [stock for stock in security_list if stock in securities]
# 返回股票列表
return security_list

概念过滤

def concept_filter(context, security_list, concept_list):
if len(concept_list) == 0:
return security_list
else:
securities = []
for s in concept_list:
temp_securities = get_concept_stocks(s)
securities += temp_securities
security_list = [stock for stock in security_list if stock in securities]
# 返回股票列表
return security_list

#自定义函数