mt4 如果在平仓后显示出开仓和平仓之间的连线？

转载：　　保存为指标，直接加载就行了。　　//+------------------------------------------------------------------+　　//| showtradeh**.mq4 |　　//| st小散 liangdawen |　　//+------------------------------------------------------------------+　　#property copyright "liangdawen"　　#property link "ldawen@126.com"　　#property indicator_chart_window　　string indnames = "";　　//+------------------------------------------------------------------+　　//| |　　//+------------------------------------------------------------------+　　int init()　　{　　return(0);　　}　　int deinit()　　{　　deltradesh**();　　objectdelete("show trade h**tory ");　　objectdelete("copyright");　　return(0);　　}　　//+------------------------------------------------------------------+　　//| |　　//+------------------------------------------------------------------+　　int start()　　{　　/*　　labelcreate("ldw1",10,10,"abckmklsjfls");　　arrowcreate("ldwdsf",d'2010.10.01 22:10',1.3675,"safs",red,3);　　arrowcreate("ld1wdsf",d'2010.10.01 20:10',1.3625,"sasfs",blue,1);　　arrowcreate("ld1sf",d'2010.10.01 10:10',1.3615,"sasfs",blue,4);　　trendlinecreate("kslsflksfsl",d'2010.10.01 22:10',1.3675,d'2010.10.01 20:10',1.3625);　　*/　　static datetime bartime = 0;　　if(bartime != time[0])　　{　　bartime = time[0];　　labelcreate("show trade h**tory ",10,10,"show trade h**tory");　　labelcreate("copyright",25,25,"(liangdawen)");　　showtrades();　　}　　return(0);　　}　　//+------------------------------------------------------------------+　　void labelcreate(string name,int x,int y,string text="-",int size=10,string font="arial",color colour=red,int window = 0)　　{　　if (objectfind(indnames+name) == -1)　　{　　objectcreate(indnames+name,obj_label,window,0,0);　　objectset(indnames+name,objprop_corner,1);　　objectset(indnames+name,objprop_xd**tance,x);　　objectset(indnames+name,objprop_yd**tance,y);　　}　　objectsettext(indnames+name,text,size,font,colour);　　}　　void arrowcreate(string name,datetime dt,double price,string text = "-",color colour=red,int arrowtype = 1,int window = 0)　　{　　if (objectfind(indnames+name) == -1)　　{　　objectcreate(indnames+name,obj_arrow,window,dt,price);　　objectset(indnames+name,objprop_arrowcode,arrowtype);　　objectset(indnames+name,objprop_color,colour);　　}　　}　　void trendlinecreate(string name,datetime dt1,double price1,datetime dt2,double price2,color colour=red,int window = 0)　　{　　if (objectfind(indnames+name) == -1)　　{　　objectcreate(indnames+name,obj_trend,window,dt1,price1,dt2,price2);　　objectset(indnames+name,objprop_color,colour);　　objectset(indnames+name,objprop_ray,false);　　objectset(indnames+name,objprop_style,style_dot);　　}　　}　　void showtrades()　　{　　int cnt;　　color openarrowcolor;　　color closearrowcolor;　　color stoplosscolor;　　color linecolor;　　string stype = " ";　　string text;　　int oc = ordersh**torytotal();　　for(cnt=0;cnt<oc;cnt++)　　{　　if(orderselect(cnt,select_by_pos,mode_h**tory) ==false) continue;　　if(ordersymbol() != symbol()) continue;　　if( ordertype()==op_sell )　　{　　openarrowcolor = red;　　closearrowcolor = violet;　　stoplosscolor = red;　　linecolor = red;　　}　　if( ordertype()==op_buy )　　{　　openarrowcolor = blue;　　closearrowcolor = goldenrod;　　stoplosscolor = blue;　　linecolor = blue;　　}　　if(ordertype() == op_sell) stype = "sell";　　if(ordertype() == op_buy) stype = "buy";　　string ticket = doubletostr(orderticket(),0);　　double lots = normalizedouble(orderlots(),2);　　double op= normalizedouble(orderopenprice(),digits);　　double cp = normalizedouble(ordercloseprice(),digits);　　text = stringconcatenate("# ",orderticket()," ",stype," ",lots," ",ordersymbol()," at ",op," ",cp);　　arrowcreate("o "+text,orderopentime(),orderopenprice()," ",openarrowcolor,1); // --open arrow　　arrowcreate("c "+text,orderclosetime(),ordercloseprice()," ",closearrowcolor,3); // --close arrow　　arrowcreate("s "+text,orderopentime(),orderstoploss()," ",openarrowcolor,4); // --stop arrow　　trendlinecreate("l " + text ,orderopentime(),orderopenprice(),orderclosetime(),ordercloseprice(),linecolor); // trendline　　} // end for　　} //end showtrades　　void deltradesh**()　　{　　int cnt;　　string stype = " ";　　string text;　　int obj_id ;　　string obj_name;　　int oc = ordersh**torytotal();　　for(cnt=0;cnt<oc;cnt++)　　{　　if(orderselect(cnt,select_by_pos,mode_h**tory) ==false) continue;　　if(ordersymbol() != symbol()) continue;　　if(ordertype() == op_sell) stype = "sell";　　if(ordertype() == op_buy) stype = "buy";　　string ticket = doubletostr(orderticket(),0);　　double lots = normalizedouble(orderlots(),2);　　double op= normalizedouble(orderopenprice(),digits);　　double cp = normalizedouble(ordercloseprice(),digits);　　text = stringconcatenate("# ",orderticket()," ",stype," ",lots," ",ordersymbol()," at ",op," ",cp);　　obj_name = "o "+text;　　obj_id = objectfind(obj_name);　　if(obj_id!=-1) objectdelete(obj_name); // --open arrow　　obj_name = "c "+text;　　obj_id = objectfind(obj_name);　　if(obj_id!=-1) objectdelete(obj_name); // --close arrow　　obj_name = "s "+text;　　obj_id = objectfind(obj_name);　　if(obj_id!=-1) objectdelete(obj_name); // --stop arrow　　obj_name = "l "+text;　　obj_id = objectfind(obj_name);　　if(obj_id!=-1) objectdelete(obj_name); // --trendline　　} // end for　　} //end showtrades 20210311