字节转换成16进制`不足2位的如何前面补0

[zhiweixuexi8]

byte[] hashedDataBytes;

;
            StringBuilder tmp = new StringBuilder();
            foreach (byte i in hashedDataBytes)
            {
                tmp.Append(i.ToString("x")); //请问这里怎么样弄,不足2位的如何前面补0
            }
            return tmp.ToString();

[wjq]

ToString("X2")

[evaa006]

楼上的都OK

[yangjiang113]

[Quote=引用 1 楼 zming 的回复:]
C# code
byte[] hashedDataBytes;
StringBuilder tmp = new StringBuilder();
foreach (byte i in hashedDataBytes)
{
tmp.Append(i.ToString("x2")); // <-- 不足2位的前面补0
}
return tmp.ToString();
[/Quote]
是这样的啊

[xxyping]

[Quote=引用 1 楼 zming 的回复:]
C# code
byte[] hashedDataBytes;
StringBuilder tmp = new StringBuilder();
foreach (byte i in hashedDataBytes)
{
tmp.Append(i.ToString("x2")); // <-- 不足2位的前面补0
}
return tmp.ToString();
[/Quote]

[zgke]

i.ToString("X02");

[zming]

    byte[] hashedDataBytes;
    StringBuilder tmp = new StringBuilder();
    foreach (byte i in hashedDataBytes)
    {
        tmp.Append(i.ToString("x2")); // <-- 不足2位的前面补0
    }
    return tmp.ToString();