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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
4 M4 ] k" a7 q/ P其中有一段如下( V3 q( o5 d. _ R
ask turtles with [ infected? = true ]
8 E% u, U1 o& m) R, e我原本以为这句会回传『所有』infected? = true 的 turtle
2 m1 U4 |* L9 M" P% h1 U但看结果似乎不是这样。$ N7 k7 Z: W- w# K X
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假设所有符合条件的有 5 笔6 G, h( }% H8 x
有时候回传 1 笔,有时回传 3 笔,是不固定的 e: m; c% D4 [1 J: a
回头查语法定义& K/ A$ F2 z5 x: L
with
' D3 o& ^/ Z* _* r2 n% Gagentset with [reporter]( L W; W" E8 t
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.
8 V7 i7 O# p5 p- b% G' Z它只说回传 agents satisfying the given condition
) u: [7 }3 M, a. W3 Y4 y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 ? . r$ b- {8 w2 F0 R
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想确定一下' z4 z: H( r% }% Q' G' D
谢谢!
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