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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
& t3 G# @1 P( n. T; }- F/ ~其中有一段如下: d1 x( N* x2 }# J' ]8 X K
ask turtles with [ infected? = true ]
3 n6 r3 v( D8 g- s2 b2 C我原本以为这句会回传『所有』infected? = true 的 turtle
, Y2 z! I! I3 R! F$ @4 }7 s9 F" f但看结果似乎不是这样。$ I( _' `" t6 R! L
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假设所有符合条件的有 5 笔" E: V$ D# w# G! b) N% Y
有时候回传 1 笔,有时回传 3 笔,是不固定的
: J# q- J3 C" k) L回头查语法定义: N% v$ ^, y. }& a
with
: m( D9 G' f2 {agentset with [reporter]
7 E$ ~! y9 f( ?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.' b& z' T+ `! ~ n4 y
它只说回传 agents satisfying the given condition
5 D. N2 w- [& ?6 r% m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 ?
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1 ?7 X/ g: h( Q& e; v想确定一下
/ W6 ~: V4 l: F( V谢谢!
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