如何迭代Go中的數組，從索引中間開始，然后從索引0繼續？

Question

我的目標是從中間迭代一個數組，然后從索引 0 繼續。

完整代碼

當前的解決方案是復制 body 塊

    for _, daysInMonth := range daysInMonths[a.Month()-1:] {
        daysDiff -= float64(daysInMonth)
        if daysDiff < 0 {
            daysDiff += float64(daysInMonth)
            break
        }

        monthsDiff += 1
    }
    for _, daysInMonth := range daysInMonths {
        daysDiff -= float64(daysInMonth)
        if daysDiff < 0 {
            daysDiff += float64(daysInMonth)
            break
        }

        monthsDiff += 1
    }

Answer 1

如果您在月份達到 12 時將 monthDiff 設置回零，它應該可以工作。

monthsDiff = 0
// i.e. a.Month() is 10
// then subtract daysDiff with days of Month 10, 11, 12, 1, 2, and so on.
for _, daysInMonth := range daysInMonths[a.Month()-1:] {
    daysDiff -= float64(daysInMonth)
    if daysDiff < 0 {
        daysDiff += float64(daysInMonth)
        break
    }

    if monthDiff == 12 {
        monthsDiff = 0
    } else {
        monthsDiff += 1
    }

}