MC不斷發單，導致多空部位對鎖，很快提示保證金不足

    代碼A： if close>close[1] then buy next bar at market;   //  當前收盤價大于前根收盤價，下根bar開盤時買進；  

    代碼B： if close<close[1] then  sellshort next bar at market;   // 當前收盤價小于前根收盤價，下根bar開盤時賣空；

1.     if arketposition=0 and close>close[1]   then buy next bar at market;   
   
2. 
   
3.     if  marketposition=1 and close<close[1] then sell next bar at market;
   
4. 
   
5.     if marketposition=0 and close<close[1] then sellshort next bar at market;
   
6. 
   
7.     if marketposition=-1 and close>close[1] then buytocover next bar at market;