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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/ h$ n. Y$ C& c& F( T# M Z
其中有一段如下
* w, m% r0 {: Y: B6 Z9 |8 Jask turtles with [ infected? = true ] 1 e' a& i: B5 i" N& e
我原本以为这句会回传『所有』infected? = true 的 turtle. F, Y9 u- {0 N8 ?; J8 j
但看结果似乎不是这样。
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2 Z; w+ P9 B% `- ^假设所有符合条件的有 5 笔6 w, T% Q; B& Q6 ~6 N1 R+ v
有时候回传 1 笔,有时回传 3 笔,是不固定的
3 q- E; t& H; Y回头查语法定义& H/ s; E2 r" \
with 0 D9 d: d7 k V* i' r. F* N
agentset with [reporter]
0 |& p9 U3 m+ d, a9 `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.
7 E+ q0 r3 R% }* t它只说回传 agents satisfying the given condition
* H4 G% z( T" M% V( {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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" \6 A' v, ~ \9 c7 D想确定一下; j3 q1 g$ q3 C! w) Z
谢谢!
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