def types(num):
    try:
        int(num)
        # return '数据类型错误'
        print('数据类型错误')
    except ValueError:
        return num

NameList = []
for i in range(5):
    NewName = input('请输入你要查询的名称：').replace(' ', '')
    if types(NewName) == NewName:
        if NewName in NameList:
            print('你输入的名称是{0}，已在数据库中存在，欢迎您 {0}'.format(NewName))
        else:
            NameList.insert(0, NewName)
            print('你输入的名称是{0},数据库中间不存在，你的名称{0},已经被收录在数据库中了'.format(NewName))
    else:
        # print(types(NewName))
        pass
print(NameList)