* define a tuple for int, double, string... not for object d:=[] * assignment d[0] := ‘a string‘ * get tuple length, method 1: leng:=|d| * get tuple length, method 2: tuple_length(d,leng) * get length of object tuple count_obj (ContoursSplit, Number)
原文：http://www.cnblogs.com/crazyghostvon/p/HalconTuple.html