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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/ i; v3 E1 D2 z- p2 Y% D
其中有一段如下, F- R1 w7 H) m6 D" A
ask turtles with [ infected? = true ] ; f4 I3 k3 {5 D
我原本以为这句会回传『所有』infected? = true 的 turtle
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假设所有符合条件的有 5 笔+ J! l4 C! ~2 f& A; t! R
有时候回传 1 笔,有时回传 3 笔,是不固定的4 w& a7 F! M* i( E/ g; T
回头查语法定义
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agentset with [reporter]
8 G0 ]. r A% Z0 wTakes 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.
% f" l& l+ z5 b5 D它只说回传 agents satisfying the given condition+ M9 X2 M( F h& Y( X8 Q2 ]* 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 ?
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想确定一下
# A; F0 S$ b! o0 h! u谢谢!
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