------------------------两个数相加---------------------
int i = 0001;
Response.Write(i + 1);

如何保证输出的数为0002

[解决办法]

C# code

Response.Write( (i+1).ToString().PadLeft(4,'0'));
[解决办法]
Response.Write( (i+1).ToString().PadLeft(4,'0'))


[解决办法]
            int i = 0001+1;
           MessageBox.Show(i.ToString("0000"));