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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/ ]. W# W! D3 y
其中有一段如下
% t) b9 C; A1 z3 q: s8 cask turtles with [ infected? = true ] # X9 v7 V6 y$ T+ q2 i7 E4 k% B# J* s
我原本以为这句会回传『所有』infected? = true 的 turtle
6 i* B3 r; G& D4 p: k2 {( J/ X E但看结果似乎不是这样。
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2 n) H3 X+ W4 O" A* M" v假设所有符合条件的有 5 笔
! j- }/ W: l, Y. s' H* B) S @! g有时候回传 1 笔,有时回传 3 笔,是不固定的, _$ G1 A }0 W4 i2 r8 f
回头查语法定义8 u$ ~. K b' {% S
with
5 o ]$ }0 v9 s+ w) q5 ]; iagentset with [reporter]8 g U$ i( i y4 Q# Y) Z+ B
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.
9 s/ S g4 ^3 v u它只说回传 agents satisfying the given condition
, y* U7 t) r# W* Y" m x+ D. ]; b* 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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9 G7 j4 H: |) T- H/ E( e; c6 a9 L6 N/ ~想确定一下# J& H% E; W& V- x* m
谢谢!8 l/ \1 b6 O# t' `
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