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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0 d7 y& N. X5 @" E) o6 h' ]) k
其中有一段如下- l! r4 K( T6 o+ w o) S0 d
ask turtles with [ infected? = true ]
7 |5 M: X8 B' [+ `% y- p+ `0 u! d我原本以为这句会回传『所有』infected? = true 的 turtle
1 A, V/ g, Y! |6 v+ O* C但看结果似乎不是这样。9 b" W: V- J0 j3 r0 j. f* ^
2 U2 R1 J9 H& G$ I8 H+ j假设所有符合条件的有 5 笔
2 q7 m* r2 D* \" Y9 l& u" e有时候回传 1 笔,有时回传 3 笔,是不固定的
4 o- d/ z; m! S0 ~4 j( x& U回头查语法定义- P5 h* j7 k# a2 P# o: Q J2 \
with
! s: Q6 K: B9 h4 P% }1 Wagentset with [reporter]
6 B- ]6 W4 j3 t. ETakes 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.9 G$ H% D) B9 b6 v" W t' H
它只说回传 agents satisfying the given condition
8 L' O+ m1 ]: n/ G' a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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7 L1 P4 y9 a+ ?想确定一下
" A o. Q, X& C4 Y: Z8 ?谢谢!
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