字符串的分割

1

public string[] SplitString(string str)//得到权限数组
        {
            char[] p={','};
           
            string[] para = str.Split(p);
            return para;

        }

 2

 foreach (Control c in C)
                {
                    //遍历控件是从后往前寻找的                      
                }

3、