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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
- ?8 K% k7 a- ~其中有一段如下, o, ?, e% E0 T' e/ ~
ask turtles with [ infected? = true ]
- q( G1 R1 A M" y5 a, N4 }% T" F我原本以为这句会回传『所有』infected? = true 的 turtle
6 j/ u1 @; Y: q# J但看结果似乎不是这样。' O" q5 C! l6 U' k7 \$ q$ H
& X0 r/ M, E f# v, s假设所有符合条件的有 5 笔
T: r s; j9 p9 w7 g# r有时候回传 1 笔,有时回传 3 笔,是不固定的
- H, a a' w/ _- M% }% F5 x- ~& t回头查语法定义( g- d( R% n. ~& K6 K
with 1 H: q Y( o1 w9 @( D; z6 [; B& b
agentset with [reporter]0 `: t9 N* y m( l% P u7 F) Q& x
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./ f- x# b7 P1 S8 Q
它只说回传 agents satisfying the given condition
6 \& ?: Z# ^* p( E3 ^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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想确定一下, l D1 |+ a9 Z7 ]
谢谢!
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