获取绝对值最小

代码：

def getAbsNumber(arr: list) -> int:

    if arr[0] >= 0:

        return arr[0]

    elif arr[-1] <= 0:

        return abs(arr[-1])

    else:

        low, high = 0, len(arr)-1

        while True:

            mid = (low+high)//2

            if arr[mid] >= 0 and arr[mid-1] < 0:

                if abs(arr[mid]) < abs(arr[mid-1]):

                    return arr[mid]

                else:

                    return arr[mid-1]

            elif arr[mid] > 0:

                high = mid

            elif arr[mid] < 0:

                low = mid

def getAbsNumber2(arr: list) ->int:

    minNumber = abs(arr[0])

    for i in arr[1:]:

        if abs(minNumber)>abs(i):

            minNumber=abs(i)

    return minNumber

if __name__ == "__main__":

    arrayList01 = [0, 5, 6, 9, 10]

    arrayList02 = [-8, -6, -5, -3, -2, -1]

    arrayList03 = [-8, -6, -5, -3, -2, -1, 0, 5, 6, 9, 10]

    print(getAbsNumber(arrayList01))

    print(getAbsNumber(arrayList02))

    print(getAbsNumber(arrayList03))

    print(getAbsNumber2(arrayList01))

    print(getAbsNumber2(arrayList02))

    print(getAbsNumber2(arrayList03))