Swift 中 Int 的前導零 - Leading zeros for Int in Swift

問題：

I'd like to convert an Int in Swift to a String with leading zeros.我想將 Swift 中的Int轉換爲帶有前導零的String 。 For example consider this code:例如考慮這個代碼：

for myInt in 1 ... 3 {
    print("\(myInt)")
}

Currently the result of it is:目前它的結果是：

1
2
3

But I want it to be:但我希望它是：

01
02
03

Is there a clean way of doing this within the Swift standard libraries?在 Swift 標準庫中是否有一種乾淨的方法來做到這一點？

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解決方案：

參考一： https://stackoom.com/question/1jH2D
參考二： Leading zeros for Int in Swift