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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 I6 F( q1 p- K
其中有一段如下" t o) o: u2 U: ^% |+ m
ask turtles with [ infected? = true ]
1 }2 y, O* e% }我原本以为这句会回传『所有』infected? = true 的 turtle2 r; H6 j2 n- O3 z& m9 V' m( r
但看结果似乎不是这样。
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' v; ^ F( a* g8 y假设所有符合条件的有 5 笔
( p7 i' a. s; Z0 L' I% N有时候回传 1 笔,有时回传 3 笔,是不固定的
2 j4 |0 B- Z- }/ D r回头查语法定义! @5 z/ Z. `5 p7 c' x/ G
with : o5 n( L; k! ^0 j
agentset with [reporter]* {& \3 D, i+ Z3 g9 g: a: ?
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." p" Y, g2 b' L2 {! z) B
它只说回传 agents satisfying the given condition
6 Y' W: E. @( n+ E s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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想确定一下
7 f9 n s( r5 N4 Z# |谢谢!# ^1 y, }) a. N O
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