获取当前账户的买入持仓合约码

def GetBuyPositionCode(context,) :

'''
获取当前账户的买入持仓合约码
'''
hold_code, option, option.buysellflag = [], PBObj(), '0'
for p in context.myacc.GetPositions(option) : hold_code.append(p.contract)
return hold_code