如何将两个string 进行^异或运算 (急)
如题: 
 如何将两个string   进行^异或运算      
 string   SChar= "00DE006723AF45DF "; 
 string   SKey= "1011 ";   
 怎样将SChar   与SKey进行异或;   
 请各位帮忙一解! 
------解决方案--------------------string SChar =  "00DE006723AF45DF "; 
 string SKey =  "1011 "; 
 long l1 = Convert.ToInt64(SChar, 16); 
 long l2 = Convert.ToInt64(SKey, 16); 
 long result = l1 ^ l2;