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这次短了一个。为什么这不起作用?
Function identity($x){$x} @(1,2,3)[identity(1)]
(这些确实有效)
identity(1) @(1,2,3)[1]
identity(1)您需要通过将其放在括号中使其首先执行。
identity(1)
@(1,2,3)[(identity(1))]