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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) L& |+ p$ v, l
其中有一段如下1 z( s; e' B; w$ o7 o I- j
ask turtles with [ infected? = true ]
' J; G: z5 D3 {9 Q我原本以为这句会回传『所有』infected? = true 的 turtle2 s. i9 E9 | o
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9 K7 u5 n- W. C; l( X! Z G+ W' | s6 }
有时候回传 1 笔,有时回传 3 笔,是不固定的
% j5 ]0 c$ }7 }3 ^" o% v4 r' M1 x回头查语法定义
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P5 L$ H" t3 a2 ]: Ragentset with [reporter]
: J P& k7 R; `) p7 a- i: A5 a! eTakes 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.
$ w& ^9 P& R( }; ~4 C' |它只说回传 agents satisfying the given condition9 a* ^$ f, t1 Z" w" Q
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 ? 6 q& ]/ y- O# R9 l, Y0 L3 V
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想确定一下. v( Y V2 {& E/ ` ^2 k
谢谢!
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