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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% Y( x; @, z9 q5 q8 e
其中有一段如下" W/ [8 v ^" ]4 O
ask turtles with [ infected? = true ] . |* q6 o& \( T( p! j/ j, e
我原本以为这句会回传『所有』infected? = true 的 turtle
! I+ _0 D! ~( \但看结果似乎不是这样。1 B: R; R4 E% v8 ^2 q
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假设所有符合条件的有 5 笔
6 N8 y+ n, u3 M$ C; N0 C有时候回传 1 笔,有时回传 3 笔,是不固定的
: x+ ?" h# r& Y3 b$ Z回头查语法定义' M' A& W$ s' J/ `0 F
with
/ l# i6 j& ?+ H1 |agentset with [reporter]2 ^5 s% w. u+ j$ k
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.
2 \0 Y: U) O8 M5 @ y. g; l它只说回传 agents satisfying the given condition
$ C: C3 t' x1 t9 c2 B' N- d# J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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) r/ j: H" K2 d5 c0 a4 U X想确定一下% b p/ Y- E6 x$ V9 F5 @6 @
谢谢!5 P5 z% _) X8 L" R7 {0 H6 |4 ^' `
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