在netlogo模型库中有一个virus on a network,里面有一个代码to spread-virus
# E) X) c: b! n+ J! p- w7 o; b ask turtles with [infected?]. a4 s. Z# X" y2 o+ l7 Z9 \- {
[ ask link-neighbors with [not resistant?]
0 ?# Y' T: l4 Y [ if random-float 100 < virus-spread-chance
/ H& i: N2 R8 {( F1 Q& t [ become-infected ] ] ]
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这里为什么virus-spread-chance大于random-float 100,就可以判断出become-infected呢?6 h5 y3 ?; e/ K
to do-virus-checks
/ @( k' f3 _% |& `. [ ask turtles with [infected? and virus-check-timer = 0]+ w. W J5 h' m( G; x @
[) P4 h( p$ e$ u& e0 F
if random 100 < recovery-chance! x" f3 t, H/ v2 o
[
+ Q: |9 N, x3 \) @ ifelse random 100 < gain-resistance-chance
3 k1 @$ J5 D8 l [ become-resistant ]1 i, S9 i- T2 m: Y G
[ become-susceptible ]
9 ^/ q" D1 B E; D ]
. _5 ?' E2 A! C, i& ^" i8 l0 c ]
: ^& N# U; ?: \1 [9 f) q, Jend
" g9 `; W% x* d& \: [7 I下面同样这个问题不明白/ S2 L6 H0 c) B2 X) T+ q, N
小妹求大神帮忙!! , ?" q6 R6 ]+ K* i6 Z
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