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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* z k' B$ }# a! {# c
其中有一段如下
2 R% ]$ E: y7 |$ `5 x p' L( e" ]ask turtles with [ infected? = true ]
; V+ \, Y- m; o7 h) z我原本以为这句会回传『所有』infected? = true 的 turtle9 O6 E {: t" c. m( O1 i# d
但看结果似乎不是这样。
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+ H8 j5 l$ F; B假设所有符合条件的有 5 笔; N; V1 \5 m3 P1 {8 b' N1 P
有时候回传 1 笔,有时回传 3 笔,是不固定的
. X/ K- q# p! z3 j. q+ l% a回头查语法定义' F- M u( n0 n) F& k. q% k
with 1 N+ q) g" v# F6 c5 G
agentset with [reporter]
' X! i3 _& t+ |/ w2 VTakes 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.( m* D8 U y- D
它只说回传 agents satisfying the given condition
- |0 Y- @$ |, v) |/ ]7 H# N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 ?
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) z: y. Y& y. ^* V! P想确定一下
: i- x1 t0 j4 m" E% T谢谢!( U" b5 S9 T1 l" ^
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