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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$ k$ c2 z- i5 {8 m
其中有一段如下
0 n* t8 R+ P# ?1 {! @0 C3 {; |5 uask turtles with [ infected? = true ] 6 r8 U# m2 [! n- \* W. k
我原本以为这句会回传『所有』infected? = true 的 turtle% V: x* R5 @9 ]& L6 m9 m
但看结果似乎不是这样。
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假设所有符合条件的有 5 笔
1 r8 G" R3 K/ D- p. p* a% ?有时候回传 1 笔,有时回传 3 笔,是不固定的
# C& @) g- m6 N8 Y' j2 R3 v$ M回头查语法定义. i) C% w/ V5 Z2 ?* a
with 5 S- ]# ? U% B! s$ X2 F
agentset with [reporter]8 C l( @# K1 N1 R3 f$ f
Takes 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.
) p4 x- B, Z. j/ l+ h它只说回传 agents satisfying the given condition
/ P2 `, S% e9 ^/ q- R! x% G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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想确定一下6 b+ B" N- _& ]1 G+ p0 z1 F
谢谢!6 m+ K! o. \' ?1 k" m. O& ^
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