請(qǐng)老師幫忙寫個(gè)策略

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if ref(all(c>o,2),1) and holding=0 then buy(1,1,marketr);

if close-enterprice>10*mindiff and holding>0 then sell(1,holding,marketr);

if low<ref(low,enterbars+1) and holding>0 then sell(1,1,marketr);