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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
9 u; ?+ W& l( v! M. c" e: s3 g其中有一段如下
4 X, R* s C, G% R( w l$ |ask turtles with [ infected? = true ] 4 R, m3 W9 h# |! j
我原本以为这句会回传『所有』infected? = true 的 turtle) M) R# A3 h1 U
但看结果似乎不是这样。* \% @( R! Y0 n% ]; b) C |! |
* t1 y$ G$ p9 C假设所有符合条件的有 5 笔
7 }" n. R; ?8 \3 D% Q有时候回传 1 笔,有时回传 3 笔,是不固定的
$ k3 e9 d( j3 T. i* \, W回头查语法定义( b5 q- y0 m; S) w1 U8 n4 ^
with 9 |* W! l! g; p$ p0 B: x5 b7 ^' g! O. v
agentset with [reporter]
8 U! i' {) Y( m& ZTakes 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.
- w4 D6 b @% W B8 k. Y它只说回传 agents satisfying the given condition+ @7 f3 P U, l) K# G& G) 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 ? 4 ]& k3 L+ S+ A9 V
4 I/ i6 q& g/ H: [( H1 W想确定一下1 |1 M: r" z J+ }/ _
谢谢!7 D* ?/ g+ X, n- j
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