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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
7 h6 h4 n# Q3 s& D5 L( |其中有一段如下
+ `* F; k0 V. p' q" J; ~ask turtles with [ infected? = true ] ( [9 ]5 a. ^1 O6 A* R8 J
我原本以为这句会回传『所有』infected? = true 的 turtle6 z& ~* R0 i! V1 ?) X; {5 J
但看结果似乎不是这样。1 y% U* P F; }* m
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假设所有符合条件的有 5 笔; F% a" k* ]" f, X
有时候回传 1 笔,有时回传 3 笔,是不固定的# Y# i- y0 l; `+ B7 Q
回头查语法定义4 @# A2 |9 _% n4 R- I; X
with
+ o. |7 W3 E( ^4 K7 L% {( l2 ^$ f7 sagentset with [reporter]
& u# ^5 r1 E7 x& B- D9 gTakes 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.8 `5 j* l l# @. |5 B
它只说回传 agents satisfying the given condition
7 ?1 E3 S- u* a7 E* Q% w5 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 ? # R$ x! e: I) B& g# w9 \
+ l$ C8 [) W6 N1 X& m: e. j* T想确定一下
& o( b! {+ Y5 I; ]谢谢!
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