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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( h0 d5 Z1 l- r) c& b c
其中有一段如下1 V d1 N0 l6 Y
ask turtles with [ infected? = true ]
: I0 n* d+ T; ?; }我原本以为这句会回传『所有』infected? = true 的 turtle
, A# U6 b- w8 @6 l但看结果似乎不是这样。
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: c% B- N/ H" q- Y假设所有符合条件的有 5 笔
1 @6 l$ w' H: b1 z [0 t1 Z1 A2 W) H有时候回传 1 笔,有时回传 3 笔,是不固定的
o& D: V8 M8 ~. }* G k回头查语法定义+ H% G9 { ], |8 A/ G) e. {* @$ u
with
" S, c! g( }. s9 X# Yagentset with [reporter]$ z4 X$ G) \( n& S0 e4 y
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.5 @: _; E3 h0 Q$ p3 C) {7 Y# K
它只说回传 agents satisfying the given condition
% G7 J% o# {" s( s8 |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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5 j Z8 G1 h+ |1 [想确定一下
8 {. p" V! k- Z- |谢谢!- q: D x( S% Z
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