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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6 ~7 \. x5 ?8 L
其中有一段如下
- ~1 }) d9 ]$ |+ F4 S; Sask turtles with [ infected? = true ]
1 Z' U+ w" U3 y6 A我原本以为这句会回传『所有』infected? = true 的 turtle
5 u2 A- {+ j$ `( S* i但看结果似乎不是这样。" u, w; t7 r" B3 l- U: G
2 a. t7 b0 T2 }& ]假设所有符合条件的有 5 笔* e r, v4 o5 s
有时候回传 1 笔,有时回传 3 笔,是不固定的
0 ^# a; f% q- [+ ]回头查语法定义
9 W3 i4 j2 J4 C1 M/ h; k0 M7 h. v: Twith
0 Z& x& ~3 d6 {' F+ v* }agentset with [reporter]: n. \' ~, d3 m; A
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.
1 J/ w u& `' _它只说回传 agents satisfying the given condition2 e4 W% Q) K/ N4 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 ? * X4 n6 R9 q7 G( W" `1 v
; _$ x8 ?0 w3 n8 g* t E" V& |: c
想确定一下* h! T# Q a4 n5 L: d3 _/ Z
谢谢!; ?1 q w, j9 U2 Q4 L- R6 G
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