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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2 ?: Z( U& r1 Z8 H
其中有一段如下
& P& }- ^0 }9 f3 A# r S! hask turtles with [ infected? = true ]
( L E$ V/ {/ A {# i7 m; O5 }. q我原本以为这句会回传『所有』infected? = true 的 turtle" r- w8 ~' l. i4 |1 e; v1 j
但看结果似乎不是这样。( A- \6 [+ s" y6 M6 ?% q$ r# x
1 }% `3 c5 k. t( W; y; o! G% {假设所有符合条件的有 5 笔
' J' h: s/ P7 h; s* |0 U8 N6 }: Q有时候回传 1 笔,有时回传 3 笔,是不固定的0 E% J& x! b1 u, M+ e
回头查语法定义& f* U& I, x4 ?. Y: r9 ?8 c
with ! R0 {8 l6 b$ u8 y0 h# N
agentset with [reporter]
% G5 `: ~1 j) ~9 b8 O7 n0 c) `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. A k6 w- y% z f9 M
它只说回传 agents satisfying the given condition, R0 J0 T$ N( b
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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6 W8 g5 K3 k; {1 L想确定一下
8 ?4 X% o" D6 ^% [+ ?谢谢!
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