我現在得一串字符，例如:0036303230303030303030303030303030303030303030303031303030303030303030323030,我想取得這串字串的校驗碼，怎么去做啊！
2 回答
qq_遁去的一_1
TA貢獻1725條經驗 獲得超8個贊
string str ="0036303230303030303030303030303030303030303030303031303030303030303030323030";
char []ch= str.ToArray();
int sum = 0;
foreach (var b in ch)
{
sum += int.Parse(b.Tostring());
}
sum =sum % 255;//模FF
sum = ~sum + 1;//取反+1
string lrc = Convert.ToString(sum, 16);
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