将片段从C转换为C＃

Question

如何将下列代码转换为C＃。我的C是有点生疏：

short CalcCrc(char *str,int len) 
{ 
    short crc=0; 
    for(int i=0;i<len;i++) 
    crc ^= (short)((unsigned char)str[i]) << (i%9); 
    return crc; 
} 

Answer 1

short CalcCrc(string str) 
    { 
     short crc = 0; 
     for (int i = 0; i < str.Length; i++) 
      crc ^= (short)(str[i] << (i % 9)); 
     return crc; 
    }