删除一个变量的值只出现一次的ID

def delete_unique_id(variables):
    count_dict = {}  # 用于存储每个值出现的次数
    unique_ids = []  # 存储只出现一次的值对应的ID

    # 统计每个值出现的次数
    for var in variables:
        if var in count_dict:
            count_dict[var] += 1
        else:
            count_dict[var] = 1

    # 找到只出现一次的值对应的ID
    for var in variables:
        if count_dict[var] == 1:
            unique_ids.append(var)

    # 删除只出现一次的值对应的ID
    for var in unique_ids:
        variables.remove(var)

    return variables

# 示例用法
variables = [1, 2, 3, 2, 4, 5, 1, 6, 7, 7]
result = delete_unique_id(variables)
print(result)  # 输出：[2, 2, 1, 7, 7]