VARIABLE:longLine=0;
VARIABLE:shortLine=0;
Value1: = ma(close, 10);
Value2: = ma(close, 30);

IF  cross(Value1,Value2)  THEN
BEGIN
longLine = high;
shortLine = 0;
END

IF  cross(Value2,Value1)  THEN
BEGIN
longLine =0;
shortLine =low;
END

if longLine<>0 then begin
buy(HOLDING=0,1,THISCLOSE);
end;

if shortLine<>0 then begin
sell(HOLDING=0,1,THISCLOSE);
end;

不知怎么錯了.圖表上沒交易信號望指導.

有兩點錯誤的地方：

1.IF  cross(Value1,Value2)  THEN
BEGIN
longLine = high;
shortLine = 0;
END

IF  cross(Value2,Value1)  THEN
BEGIN
longLine =0;
shortLine =low;
END

這里全部都沒有被賦值，賦值符號是:=  你直接寫了= 是一個判斷

2.

if shortLine<>0 then begin
sell(HOLDING=0,1,THISCLOSE);
end;

平多倉語句，但是平倉條件是持倉=0，那么這個條件永遠不會成立