var i:real
: K! q3 Y! f% L5 J" K/ ]i:=z_uniform(1,0,1)- Z, F4 Z' M5 J! H* \- D3 s+ ]9 g
@.createattr("type","string")' M; X+ E$ d6 }8 k# F+ S
if i<0.2
* D& J" e0 V. w; A& t$ m @.type:="red"6 u) \6 Y; |. F+ \4 d* C9 j2 K3 l* z
PartRecord["Number",1]+=19 B, I8 D- O# }' i P& o
elseif i<=0.5 and i>=0.2* \% F$ g% u1 A) e% I5 C( [) @
@.type:="green"6 K/ U- W5 n+ K: q4 u1 Y* `+ f
PartRecord["Number",2]+=14 u/ x2 h# j, e3 c- J1 a0 v
else
5 r/ R2 f8 C8 ^6 ~, \ @.type:="blue"
4 x# h5 n+ V+ c; A4 F PartRecord["Number",3]+=1
$ H2 ?! _/ d& K/ v5 n4 Y/ {end
& T1 Y* a* ^5 V1 V6 I: x* r, \, X" S3 R
deleteMovables
7 J2 A' f) |0 d' w7 }! t0 `PartRecord.delete({2,1}..{2,3})
' R4 o9 ^% _8 Y) K这是对的 |