是有.numMU这个属性的,我刚刚查帮助找到了: p+ v* Q& I( K1 S6 ~ X
numMu # n: s; `4 |+ F9 C' [) S
Usage: <mu_path>.numMu; # u2 B8 r! T- }6 M
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The method numMu returns the number of MUs located on the loading space of the MU designated by <mu_path>. " d, d- D: t) S4 X! p8 b9 [
5 D/ v3 w) D* N8 B! dThe return value is of type integer. * W; G* V) I' t' N* k- T