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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3 }" \ e4 ~ X
其中有一段如下2 A2 B1 O, X( }0 M h7 K9 c
ask turtles with [ infected? = true ]
; q; r6 N* a$ D. u我原本以为这句会回传『所有』infected? = true 的 turtle7 Q6 @9 y% o0 E; Q3 Z1 m9 w
但看结果似乎不是这样。8 l4 `4 e/ i) @7 A2 u
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假设所有符合条件的有 5 笔2 _. ^8 \9 B) i& ]& b" B( S
有时候回传 1 笔,有时回传 3 笔,是不固定的6 L- @0 a/ q& u$ W( W9 g
回头查语法定义2 ~% A, B7 _1 @" X
with - u6 w6 j) `$ ~ Q
agentset with [reporter]
# U. w/ y3 c8 |, S$ z" C8 F$ zTakes 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.
; T& Z$ M- @6 S& E n- G2 d它只说回传 agents satisfying the given condition# W4 a: D! E3 H5 O& q' T
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 ? $ z2 {0 o! |+ Q. P( y) E
( p5 J0 B" I) l9 Z想确定一下
3 Z4 m a- J' N4 y谢谢!
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