python数组判断是否存在重复元素

def judgeDuplicated(array):

    array.sort()

    count=0

    while count<len(array)-1:

        if array[count]==array[count+1]:

            return True

        else:

            count+=1

    return False

if __name__ == '__main__':

    array=[1,4,4,1]

    print(judgeDuplicated(array))

def judgeRepeated(array):

    nums={}

    for i in array:

        if i  not in nums:

            nums[i]=True

        else:

            return True

    return False

def judgeRepeatedThird(array):

    if len(set(array))==len(array):

        return False

    else:

        return True