請高人幫寫個通達信成交量5.10.20多頭排列和空頭排列和金叉的選股公式，謝謝

ma(v,5)>ma(v,10) and ma(v,10)>ma(v,20) and ma(v,5)>ref(ma(v,5),1) and ma(v,10)>ref(ma(v,10),1) and ma(v,20)>ref(ma(v,20),1);

{成交量均線空頭}

ma(v,5)<ma(v,10) and ma(v,10)<ma(v,20) and ma(v,5)<ref(ma(v,5),1) and ma(v,10)<ref(ma(v,10),1) and ma(v,20)<ref(ma(v,20),1);

{成交量均線同時金叉}

cross(ma(c,5),ma(c,10)) and cross(ma(c,10),ma(c,20)) and cross(ma(c,5),ma(c,20));

{成交量均線至少壹個金叉}

cross(ma(c,5),ma(c,10)) or cross(ma(c,10),ma(c,20)) or cross(ma(c,5),ma(c,20));