标题：怎么编写固定止盈止损

举例：期货无论什么品种，我都想盈利 30档位止盈，15档位止损，通用的代码怎么编写

多头止损止盈:

if holding>0 and c>enterprice+30*mindiff then sell(1,0,market);

if holding>0 and c<enterprice-15*mindiff then sell(1,0,market);

 

空头止损止盈：

if holding<0 and c<enterprice-30*mindiff then sellshort(1,0,market);

if holding<0 and c>enterprice+15*mindiff then sellshort(1,0,market);