在netlogo模型库中有一个virus on a network,里面有一个代码to spread-virus
$ Y0 M8 m! v- B: S ask turtles with [infected?]
% Z ?7 @$ c9 T6 g, b+ I [ ask link-neighbors with [not resistant?]
' u% A! Y, V) f8 I+ Z" ^" j [ if random-float 100 < virus-spread-chance
! [& K9 y; j- m( v, \ [ become-infected ] ] ]# i1 Z( M7 t: `/ D$ w, @& |" R8 w
end
0 @; n5 M; n# b: c+ j这里为什么virus-spread-chance大于random-float 100,就可以判断出become-infected呢?
* Z! m2 ^6 k: Eto do-virus-checks0 n# q, s5 X$ W
ask turtles with [infected? and virus-check-timer = 0]
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( M. ~% Z3 E9 `! l6 z5 x if random 100 < recovery-chance. `1 H, a) v( S: ], R
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ifelse random 100 < gain-resistance-chance
8 I9 w9 F% P! b/ a! ~4 z: T [ become-resistant ]6 X9 Q) N( R5 ?3 B4 y
[ become-susceptible ]" }, P: J! n1 ~6 o! k
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]$ n0 C8 V8 e9 z' @! b5 c& @
end
5 f, h; s' M1 m5 u: l9 k6 ~下面同样这个问题不明白
0 t! o; Q7 ~- n$ c# _小妹求大神帮忙!!
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