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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
( B# u: L! ~/ u2 G0 l2 H1 S4 c其中有一段如下* I' A7 e9 m3 r- l5 I% o; a4 h# B/ C# i
ask turtles with [ infected? = true ]
4 F" G# J+ s: t6 N, `# C我原本以为这句会回传『所有』infected? = true 的 turtle2 \6 `. x4 ]" V8 a+ o
但看结果似乎不是这样。
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假设所有符合条件的有 5 笔 z! ?5 ]& o, Q9 i0 m y2 x: F) S7 ?, g
有时候回传 1 笔,有时回传 3 笔,是不固定的
2 U3 y% I& V7 O* ]$ m回头查语法定义
4 n& Z& s% p7 V* t+ k2 Lwith 3 m i, x/ j V8 R) U
agentset with [reporter]" |, Z* i2 z, a8 Z- [4 G6 a
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.) h( l. n' b a4 e5 k+ M
它只说回传 agents satisfying the given condition# i: P6 a0 z- Y5 J* O
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 ? ; E5 P2 s' E% s2 w2 j% A) n
9 y" n( L' i+ ]想确定一下
2 \) A( d7 u. f p* J! K谢谢!1 C7 ^2 [; M M1 Y2 _
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