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@ -380,7 +380,7 @@ let paddedString = alignRight(originalString, 10, "-")
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> 注意:
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> 输入输出参数不能有默认值,而且可变参数不能用 `inout` 标记。如果你用 `inout` 标记一个参数,这个参数不能被 `var` 或者 `let` 标记。
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下面是例子,`swapTwoInts` 函数,有两个分别叫做 `a` 和 `b` 的输出输出参数:
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下面是例子,`swapTwoInts` 函数,有两个分别叫做 `a` 和 `b` 的输入输出参数:
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```swift
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func swapTwoInts(inout a: Int, inout b: Int) {
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