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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5 O' _5 v2 ]$ Q, j8 W
其中有一段如下
& t% e7 s" B' W( _6 f/ _: E& E7 Kask turtles with [ infected? = true ]
6 ~6 ?- W5 G1 j" w0 g1 O n& ~# v我原本以为这句会回传『所有』infected? = true 的 turtle7 i( A" U- W; s4 S2 B
但看结果似乎不是这样。/ [! ~' z& a k8 u+ }& t
1 S4 k+ ^9 N! d; y假设所有符合条件的有 5 笔
8 Z5 r% y+ g' _& l2 g有时候回传 1 笔,有时回传 3 笔,是不固定的
$ p. o; [' h6 j, y5 r8 h# d回头查语法定义! r# L/ C/ T) D" g* y
with
+ C- h' ~4 W0 [) K1 ~agentset with [reporter]
) |( K3 q2 a+ KTakes 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.
+ W# e$ R) E; p! x6 W; u! U% F它只说回传 agents satisfying the given condition
4 |2 T. c! E; p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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( ?* Z1 f ] F想确定一下
0 a+ L+ ^: ?) a; o7 @0 s. f5 M0 ^谢谢!
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