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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
* A s$ v5 L2 R% G: L其中有一段如下7 b( c& ?$ r$ t
ask turtles with [ infected? = true ]
) |' L; ?- v6 L0 ^# C我原本以为这句会回传『所有』infected? = true 的 turtle
, j( ~% ?5 S0 x; S. L" `但看结果似乎不是这样。1 G% ]. f9 r z& e
. \: T8 N- l( O2 c6 Q假设所有符合条件的有 5 笔
2 W5 ~0 O$ r* Y3 ^, E有时候回传 1 笔,有时回传 3 笔,是不固定的$ Z/ p5 M3 @' x9 B* `% o8 H1 `0 \ O
回头查语法定义7 N. S9 w7 h: ]$ C0 O
with
( q$ \! L$ T+ ]; z1 ragentset with [reporter]
7 P B1 n1 o( |, N1 oTakes 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.; q; z0 K! c3 E+ Y3 r
它只说回传 agents satisfying the given condition
/ L4 t8 x+ O/ o# a0 U9 c6 [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 ? , k3 e( F: T P6 k0 V) \' n
$ S; x) c: H% P9 A4 p
想确定一下( v0 c/ [4 Q7 n5 S
谢谢!! ?; ^: d, l3 s0 p. g. l
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