算法：10幢房子分给3个人

Dictionary<string, string> dicPZ = new Dictionary<string, string>();
int ZZS = int.Parse(this.txtTotalNum.Text);//总幢数
int ZHS = int.Parse(this.txtHNum.Text);//总户数
if (ZZS==0)
{
    XtraMessageBox.Show("总幢数为0");
    return;
}

int x = (ZZS) / (checkUsernameList.Count);//商数
int y = (ZZS) % (checkUsernameList.Count);//余数

//整数部分
for (int k = 0; k < checkUsernameList.Count; k++)
{
    for (int j = 0; j < x; j = j + x)
    {
        dicPZ.Add(listZH[k*x+j], checkUsernameList[k]);
    }
}
//余数部分
for (int k = 0; k < y; k++)
{
    if (x==0)
    {
        dicPZ.Add(listZH[k], checkUsernameList[k]);
    }
    else
    {
        dicPZ.Add(listZH[checkUsernameList.Count * x - 1 + k], checkUsernameList[k]);
    }      
}