|
|
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" h1 C) \5 z" v5 W$ i( L J) `0 u0 |
其中有一段如下
) `. ^' Y B3 [: Rask turtles with [ infected? = true ] 8 `7 F! u/ g ^1 @$ x, F
我原本以为这句会回传『所有』infected? = true 的 turtle0 \: R! s- |7 x; C, \" l1 g$ o, Q
但看结果似乎不是这样。% ^' L V# n; L2 w" M9 e( @. v
) A7 L( d) g) f8 E4 P- R
假设所有符合条件的有 5 笔$ k0 S, M: y# `7 }
有时候回传 1 笔,有时回传 3 笔,是不固定的1 o% y% m* t- q/ `' p
回头查语法定义$ Z$ I6 x3 h- a# D1 h' z- s
with ; v( \5 |) X. g2 R
agentset with [reporter]
4 C1 E/ [% v3 Q2 V7 x8 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.* `# X; U# K- _4 \" D
它只说回传 agents satisfying the given condition6 B& U, y; T0 w# N1 g
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 ?
/ c' a& v: W0 g6 ^
6 _( a- X- ^' d8 o% M: i想确定一下
, i) B; G; y. t* g) z5 i& Z谢谢!2 \% x( a, f% f0 V, s, Y
|
|