引用:
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作者foxykat
PO上來做什麼 都考完了= =
open question要寫一堆字的題目
就類似
(answer three out of six)
(answer five out of ten)
(answer all)
(as many as appropriate)
實在想不出來為什麼我會眼殘沒看到這種關鍵字 
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Backtrace:
In current input:
1: 0* (answer three out of six)
<unnamed port>:1:1: In expression (answer three out ...):
<unnamed port>:1:1: Unbound variable: answer
ABORT: (unbound-variable)
guile> (let ((it 'be)) (display it)(newline))
be
guile>
兩位同學的語法都不對喔
