求一算法

Question

给一个数，然后根据每行的个数来打印数字
如:12,每行5个，打印就是如下:
1,2,3,4,5
6,7,8,9,10,
11,12

Answer 1

自己写了一个，不过是错误的。如下:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;namespace ConsoleApplication1
{
    class Program
    {
        static void AssignNum(int count, int per)
        {
            int x = count % per;
            for (int i = 0; i < count; i++)
            {
                if (i % per == 0 && i > per)
                {
                    Console.WriteLine();               
                }
                Console.Write(i + ",");
            }
        }
        static void Main(string[] args)
        {
            AssignNum(101, 4);
            Console.ReadLine();
        }
    }
}

Answer 2

static void AssignNum(int count, int per) 
        { 
            for (int i = 1; i <= count; i++) 
            { 
                Console.Write(i + ","); 
                if(i%per==0)Console.WriteLine();
            } 
        } 

Answer 3

static void AssignNum(int count, int per) 
{ 
    for (int i = 1; i <= count; i++) 
    { 
        Console.Write(i+"");
        if(i%per==0)Console.WriteLine(); 
        else Console.Write(",");
    } 
}