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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
" q! G1 Y3 C5 }# P6 v1 B其中有一段如下# I& y/ e9 T0 ^7 W' r0 b9 {/ V
ask turtles with [ infected? = true ] X' [0 A7 h) q
我原本以为这句会回传『所有』infected? = true 的 turtle
& t# l! c- \: H' h2 V但看结果似乎不是这样。; f2 A# W4 \% C8 z% T* h
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假设所有符合条件的有 5 笔$ L5 i' y3 I3 E
有时候回传 1 笔,有时回传 3 笔,是不固定的
: h. Y1 N2 Z5 B' R& b& ]( ^2 J$ |回头查语法定义
2 f8 i! \) ]/ pwith
9 ~, g8 m5 e% l0 M Yagentset with [reporter]
2 a; Q2 s! _6 gTakes 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 m4 N6 {. o4 g# @它只说回传 agents satisfying the given condition
# y5 T* P9 C" Z& @- a z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/ E# Y5 u( C& C, N0 k/ b
谢谢!1 x5 J6 K+ B9 d0 L" G; X
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