我想能不能先做一个变量p, h4 U! Z% u( l
let p random-float 1.0. t+ Z! p% R* u7 Q& q+ p% n
ifelse (p< a*b)
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set pcolor white
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set pcolor red
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/ G$ `) t" G b8 Z: s7 o呵呵,不知道行不行' E7 }+ h, v$ ?2 t7 e
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+ b! T* b+ {; W- f9 H; p$ l 2# jingkun522 |