是有.numMU这个属性的,我刚刚查帮助找到了# y- _. w" d, b0 q+ Z
numMu 4 g) i9 E8 J! fUsage: <mu_path>.numMu; 7 k. K# n9 y' D N3 _' o1 G0 x0 F1 U' H0 G5 ?# r3 A
The method numMu returns the number of MUs located on the loading space of the MU designated by <mu_path>. 5 N+ _/ n" u, B3 i( g' o / b. o/ e$ u9 o5 {% M: CThe return value is of type integer. . _2 W8 E6 W. _4 G# ~: y( B