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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4 E/ G( Y8 i ?' h
其中有一段如下) G- x1 |3 B$ K8 Y; E4 D7 h
ask turtles with [ infected? = true ]
- _) K+ n A# Z/ n" t2 l4 K R我原本以为这句会回传『所有』infected? = true 的 turtle
3 m9 d, ~& a, k$ e0 m0 q2 m但看结果似乎不是这样。7 t) w( d7 |, @$ Z# P# n
4 {: b5 M& m/ p ]9 Y$ J" Z% J) i
假设所有符合条件的有 5 笔- }5 \$ s) e' q1 Z* w
有时候回传 1 笔,有时回传 3 笔,是不固定的1 i0 c2 e* o2 Y. a* P0 C
回头查语法定义
' ]; }7 `, _2 u8 n& I0 ?0 P, h/ q2 Lwith - x2 l7 R" K1 x0 L: f# w9 U
agentset with [reporter]
7 L8 w2 d. p3 {0 L% f6 k; n( YTakes 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.! i. K8 D( L, V' _( G; {
它只说回传 agents satisfying the given condition
9 U. C% P$ F0 B% N! h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 ?
7 o, l5 E" l1 }; p7 s4 Z
5 m" q$ d: i- R想确定一下
& @! Z$ P) Y2 E% w8 {谢谢!4 R; c' C9 d3 l1 }8 D
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