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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
! h, W, {5 C. r* [其中有一段如下
' e1 P: X6 d# Q$ X" k4 Jask turtles with [ infected? = true ]
8 t2 J) f5 H6 v! b我原本以为这句会回传『所有』infected? = true 的 turtle
% T0 y2 U; J( |7 z4 M9 o但看结果似乎不是这样。* R4 c* q- g" D2 K' G0 j
0 C- W2 Z- O, j% p' V& M+ ]5 ?假设所有符合条件的有 5 笔
( h( d Y) {! @6 v有时候回传 1 笔，有时回传 3 笔，是不固定的4 V* j0 {5 U$ Q
回头查语法定义
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agentset with [reporter]. x" c, v7 E6 h
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.
b7 Y5 Q. \, g它只说回传 agents satisfying the given condition
7 V4 |, E, }( G6 s( Z$ v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 ? 0 |: B3 D) L& ]$ z& |5 {: o5 Z
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想确定一下; ]6 A1 Q8 B) U5 W0 J4 p3 @7 C1 |. ]
谢谢！
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楼主
发表于 2013-11-7 00:02:20
