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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
, Q8 D. P# }1 @8 s" u# B5 Q其中有一段如下
x3 |. U; G5 u0 l& t+ K0 o# dask turtles with [ infected? = true ] , D$ [1 c$ U6 R+ k
我原本以为这句会回传『所有』infected? = true 的 turtle
, I$ x& h$ u* ?) c, _0 P但看结果似乎不是这样。
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) `! _) R- @' D9 ~" I v假设所有符合条件的有 5 笔
# ~, o, b8 u- @% J* R有时候回传 1 笔,有时回传 3 笔,是不固定的
# b- `% P- M7 w3 Y4 e* F! I+ N回头查语法定义0 l0 N2 y7 [4 j) D1 W
with
9 v1 p5 ]8 ]( @3 aagentset with [reporter]
1 V3 K& j; U. X; _9 ?% V! xTakes 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.: l5 |' |' d) \7 x
它只说回传 agents satisfying the given condition
6 l' n, u$ O' q7 c4 [8 M7 x1 w4 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 ? ; J9 J* Q* H6 N0 H
# w7 K5 ~# |% R8 ? `5 P3 a- |想确定一下4 x9 J! R: J& H1 O
谢谢!; E2 h6 |# `( d2 Q
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