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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) {* H9 S0 C# E$ \
其中有一段如下$ ^$ _% }& }* h& Q
ask turtles with [ infected? = true ] f6 N& Z1 `$ n& e9 b
我原本以为这句会回传『所有』infected? = true 的 turtle
0 j, e3 g& G: a+ Q但看结果似乎不是这样。4 F' B: J5 g/ x
8 O4 Y& V9 C. g: D4 F9 t& H假设所有符合条件的有 5 笔
5 p, |- V; U4 g8 l- ]7 U有时候回传 1 笔,有时回传 3 笔,是不固定的! M: ]6 H2 [$ Y# d0 m! z$ E
回头查语法定义* g8 v, }: h2 U; A1 D% U! m
with
# i: E% ]+ \* K. q: Vagentset with [reporter]
0 ` q% x4 C3 ~- K. E# OTakes 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., i5 \! x; B% p$ \3 d% k
它只说回传 agents satisfying the given condition
* I, m C. ]5 f0 [8 }' U; k1 \& N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 ? . W/ |5 G, x* X: o% Y5 l- l
k6 I8 J, M1 m& T想确定一下
. J( o/ s8 ~4 t3 {: i( \9 U谢谢!; w5 C% t8 t& a% ~6 N
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