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新手发问超简单问题,目前还处于研读范例码的阶段,边测边看结果来理解程序
8 `: e! Y4 k5 Y9 d* c! s其中有一段如下
1 d8 ~4 \# |, a4 ^) |( _ask turtles with [ infected? = true ] # k" f; Y- m' P i2 o, k
我原本以为这句会回传『所有』infected? = true 的 turtle" R% U9 G$ w4 h4 H, s) d5 E
但看结果似乎不是这样。( q! ?" n! b2 L* u R- W
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假设所有符合条件的有 5 笔 B. s( e$ S! ?. H$ Z& t
有时候回传 1 笔,有时回传 3 笔,是不固定的
! K$ A0 O |6 Y% A: }0 m% P回头查语法定义& u; {) U0 J" v2 j9 }
with ! V; ~1 s% `; r
agentset with [reporter]
' T; _% y4 M" ]6 oTakes two inputs: on the left, an agentset (usually "turtles" or "patches"). On the right, a boolean reporter. Reports a new agentset containing only those agents that reported true -- in other words, the agents satisfying the given condition.0 M- k5 G) T/ b1 K; F" C% R
它只说回传 agents satisfying the given condition+ }2 k% a% _0 s4 h1 C$ P/ D
是否 with 回传的是『符合条件』的数据,而不是『所有符合条件』的数据 ? m# R8 t. F# ]+ j6 w/ j' G0 G/ y
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想确定一下! Y) M5 |. q) F: v
谢谢!; S- U5 p/ S6 G, ]
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