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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# {* j2 `! B( n& F
其中有一段如下
4 `+ y& A! T" q4 R; F* J) X. W3 Aask turtles with [ infected? = true ]
! N+ N. x! ?. t. b6 p我原本以为这句会回传『所有』infected? = true 的 turtle
5 S8 E* U" q3 \+ |! F0 p8 j% f但看结果似乎不是这样。8 k0 n6 N) ~( N# @% H3 @
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假设所有符合条件的有 5 笔6 r3 {1 g' q9 x1 u4 Z \% n
有时候回传 1 笔,有时回传 3 笔,是不固定的0 U7 W S. r8 ?+ R
回头查语法定义& r( C& y7 P) m5 f5 W$ c+ ~
with
' X- L- F6 U2 U5 q" D/ H/ `' A; nagentset with [reporter]2 K5 O' S2 i7 L
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.
% h4 r! J$ H7 [3 V, L2 G它只说回传 agents satisfying the given condition6 Y, n: g7 ~8 Z+ l3 M, R0 R. G
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 ? / y1 c* A; ]" ?
0 a: S- @: w2 d4 y" {. s; e) |想确定一下 M& J" H/ r+ d3 X: |
谢谢!
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