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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
6 h( ?# i" A a, H! b其中有一段如下
( }% X( A# J8 |$ Eask turtles with [ infected? = true ] : V0 f2 j0 w/ _+ s2 R& q: y8 g
我原本以为这句会回传『所有』infected? = true 的 turtle3 y3 H6 g& w- R
但看结果似乎不是这样。
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- d z3 \' K* {1 `- u( x假设所有符合条件的有 5 笔
; k- D5 @/ d! L2 c有时候回传 1 笔,有时回传 3 笔,是不固定的) @7 O7 n& i, S: B- W* Z3 o
回头查语法定义9 p+ z8 \' F0 K; k4 `
with 7 a& T9 f3 M8 y% |% L
agentset with [reporter]7 j& g) p" }3 a7 O
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." s2 |7 }" L$ t
它只说回传 agents satisfying the given condition
( e% E$ ^2 \+ U4 v8 t& y: 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 ? 4 k% g4 |. `# |, A. R. \
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想确定一下2 e% @! Z3 q1 B5 l# S% z
谢谢! m+ f# f# U; B" x) m! \: ]
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