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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
" T; B' ~( I& n* ~, ^! E9 i其中有一段如下
1 c$ X% N7 j4 n0 y; u& _ask turtles with [ infected? = true ] 5 G" {, H5 P$ A1 _2 ?0 \% O
我原本以为这句会回传『所有』infected? = true 的 turtle
, y& S2 a9 \" d+ Y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7 A0 M, H+ i, Q! }( D
有时候回传 1 笔,有时回传 3 笔,是不固定的4 L9 F+ @- \$ j
回头查语法定义; g+ ]2 [2 k- V. I9 Y
with 0 m6 R- I! l! O6 a" q1 P0 P4 w
agentset with [reporter]* m$ l2 v% u4 t( m- c8 Y
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.; g& h' R: S7 A% S. c% e
它只说回传 agents satisfying the given condition
( d( U- c r$ z/ U, H* K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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7 c4 p4 }- H9 I' e8 k想确定一下# y, F+ j3 _5 F8 Q2 [
谢谢!
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