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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, G4 o J# l1 J% y0 T, {7 h
其中有一段如下
6 n, E# b& t5 E' f& m$ A7 bask turtles with [ infected? = true ] 5 \0 _' d6 R2 R N
我原本以为这句会回传『所有』infected? = true 的 turtle
4 B r" w$ e3 X- G, B& {6 t! _但看结果似乎不是这样。# \3 Q8 ~9 D" b+ z8 Y& }2 @/ C
6 c- l6 R, ?7 [. G3 L% A* p3 C假设所有符合条件的有 5 笔
: o. i$ ?7 R6 p' Q2 q有时候回传 1 笔,有时回传 3 笔,是不固定的
+ L4 z! U" t! @: S7 h/ f回头查语法定义
0 }/ c6 a4 I$ Y8 f8 w1 awith
. @8 Y$ |& x' vagentset with [reporter]* H% Z f7 K- \7 U& g1 {1 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.5 A5 f$ o. J- G9 R/ \& T
它只说回传 agents satisfying the given condition5 ^0 y' g' C$ q, ^ w
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 ? & U/ ]4 P. K9 B! Y% v
+ @7 ^0 c8 K- j/ w" A想确定一下" ]0 G- u. p' h& S
谢谢!0 H, N! j6 \$ D/ J' ~8 Y
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