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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- Q y/ b. j5 N7 {- U' }4 y
其中有一段如下- Y8 W4 a$ X0 { m5 J$ m @- X% H
ask turtles with [ infected? = true ]
& u7 L3 u/ _4 H% n0 E我原本以为这句会回传『所有』infected? = true 的 turtle8 X5 {1 [1 Q3 r& c3 v; @: _% E! ~
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# ]$ Z6 _% N. E
有时候回传 1 笔,有时回传 3 笔,是不固定的9 I7 H; n1 O) a4 t
回头查语法定义: y6 J8 v+ S: y: G7 v
with 0 X n) f+ W4 R8 z' g$ P
agentset with [reporter]
" o! S) [ _5 uTakes 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.
# O- ]5 s% n) Q$ `8 D/ }它只说回传 agents satisfying the given condition. ?' O* q! ]$ R. P2 X. C
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5 M9 @+ u' }5 ^4 j2 p7 H# r# P
谢谢!, x, a1 |& \5 i2 J% [' Y: c
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