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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 l4 S& y& j% ^, F
其中有一段如下
2 s! ^' V0 K; l( q. vask turtles with [ infected? = true ] . {" J- n& f3 @5 A/ ~& M
我原本以为这句会回传『所有』infected? = true 的 turtle9 J& x' N$ Y; M! c+ _! w3 i0 A2 J
但看结果似乎不是这样。5 e* `4 R1 y8 h) Y; b9 {( } T0 F
3 T9 a7 {# [6 U% O5 z假设所有符合条件的有 5 笔
8 n( N5 B- m4 c1 _. n有时候回传 1 笔,有时回传 3 笔,是不固定的
- H6 ]/ T+ A& T; a& C回头查语法定义
. D% k* u4 A5 V6 t& \7 Rwith
# G% H3 A3 @& Z- j+ {agentset with [reporter]6 f9 {# M/ ^+ L1 c
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.
, `6 Z! ?) U* Z$ L' B$ C它只说回传 agents satisfying the given condition+ q) D. E7 Z& v a$ U
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 ? R3 Q5 ~7 g0 v
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想确定一下
) r+ u/ d5 J- `$ a" A谢谢!
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