private static void AddCustomer()
{
Console.WriteLine("添加员工，请依次输入客户相关信息！");
Customer entity = GetCustomerByConsole();
if (CustomerMgr.Add(entity))
{
Console.WriteLine("添加成功！");
ShowCustomerList();
}
else
{
Console.WriteLine("未添加任何信息！");
}
}
public void Add([FromBody] Customer customer)
{
_customerMgr.Add(customer);
}