按照 https://tbq.tbquant.net/helper?product_id=999&keyword=3507&content_id=277&type=article#%E5%8E%86%E5%8F%B2%E6%B6%A8%E8%B7%8C%E5%81%9C%E7%9A%84%E8%AF%BB%E5%8F%96 示例

//计算涨跌停价格

Numeric myjump=MinMove*pricescale;

If(ExchangeCode=="CZCE")

{

myuplimit=RoundUp(mysettleprice[0][0]*(1+0.01*mypricelimit[0][0])/myjump,0)*myjump;

mydnlimit=RoundDown(mysettleprice[0][0]*(1-0.01*mypricelimit[0][0])/myjump,0)*myjump;

}Else If(ExchangeCode=="DCE")

{

myuplimit=RoundDown(mysettleprice[0][0]*(1+0.01*mypricelimit[0][0])/myjump,0)*myjump;

mydnlimit=RoundUp(mysettleprice[0][0]*(1-0.01*mypricelimit[0][0])/myjump,0)*myjump;

}Else If(ExchangeCode=="SHFE")

{

myuplimit=RoundDown(mysettleprice[0][0]*(1+0.01*mypricelimit[0][0])/myjump,0)*myjump;

mydnlimit=RoundDown(mysettleprice[0][0]*(1-0.01*mypricelimit[0][0])/myjump,0)*myjump;

}Else If(ExchangeCode=="CFFEX")

{

myuplimit=RoundDown(mysettleprice[0][0]*(1+0.01*mypricelimit[0][0])/myjump,0)*myjump;

mydnlimit=RoundUp(mysettleprice[0][0]*(1-0.01*mypricelimit[0][0])/myjump,0)*myjump;

}

If(myuplimit<=mydnlimit) Return;

//PlotNumeric("myuplimit",myuplimit);

//PlotNumeric("mydnlimit",mydnlimit);

Commentary("合约涨停价="+Text(myuplimit)+", 跌停价="+Text(mydnlimit));

以上代码在888上能实现历史涨跌停价的获取

但在777上却不能实现历史涨跌停价的获取。求777上获取历史涨跌停价的方法，谢谢