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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1 a) Y. ~7 v6 o/ q+ R. Q3 a
其中有一段如下
" M1 k7 ^2 H7 s% ^& t+ _7 ^ask turtles with [ infected? = true ]
: }: e4 Y- o! P7 }我原本以为这句会回传『所有』infected? = true 的 turtle# q7 L2 \, s( W7 l# v! n
但看结果似乎不是这样。
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. z7 }' q) x( U' q+ k- [假设所有符合条件的有 5 笔
0 m, M8 Z7 e/ K+ u有时候回传 1 笔,有时回传 3 笔,是不固定的
/ d7 j) s* L# I9 s回头查语法定义7 q: h( P! j" _0 {1 F
with }( n$ E8 B1 e9 X* e
agentset with [reporter]
b2 r7 e) h+ g z$ ?! \. e& HTakes 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.
5 G3 y- u0 ^& W0 k/ T它只说回传 agents satisfying the given condition
. ^# A, J' C8 {# j1 `6 a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 ? Q( M0 {/ s3 X: v! `3 B# Z
[( k; M# f2 O$ C$ X" ^想确定一下
: J% `1 F9 W) T谢谢!
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