我哭啊,哪位大神帮我翻译一句VB的代码到C# ？

[wuhuanghao]

    Dim i, s
    for i = 1 to Len(str) 
        s = s & (asc(mid(str, i, 1)) xor key) & "," 
    next
    '----------
    Dim t
    t = (DateDiff("s", #1/1/1970#, Now) * 1000) / 100
    s = s & t 
    '----------
    s = s & key & m 
    '----------

    x = Split(str, ",") 
    m = Right(x(Ubound(x)), 1)
    key = Mid(x(Ubound(x)), len(x(Ubound(x)))-3+1, 2)
    'Wscript.Echo "M = " & m
    'Wscript.Echo "Key = " & key
    '----------
    Dim i, s
    for i = lbound(x) to (ubound(x) - 1) 
        s = s & Chr(Int(x(i)) xor key)
    next

这两段代码翻译成C#的代码，应该怎么写？

[threenewbee]

int i = 0; string s = ""; for (i = 1; i <= str.Length; i++) s += (str.SubString(i - 1, 1)[0] ^ key).ToString() + ","; DateTime t = new TimeSpan(DateTime.Now.Tick, new DateTime(1970, 1, 1).Tick).TotalSeconds * 10; s += t.ToString(); s += key + m;

[Regan-lin]

引用 2 楼 wuhuanghao 的回复:

s += (str.SubString(i - 1, 1) [0] ^ key).ToString() + ","; 提示：索引和长度必须引用该字符串内的位置！

少了个.?.[0]?

[wuhuanghao]

大神，第二段也帮我翻译一下吧！

[wuhuanghao]

手误，发现i打成了1

[wind_cloud2011]

用这个网站可以实现代码转换：http://www.developerfusion.com/tools/convert/vb-to-csharp/

[wind_cloud2011]

就是数组与字符的处理， 由于不知道你str的内容，转换上可能不对，大概这样 string Str = null; string m = null; Int64 key ; string s = ""; Str = "1234,2346,3668,6789,1345,1267"; string[] x = null; x = Str.Split(','); string L =x[x.GetUpperBound(0)]; m = L.Substring(L.Length - 1, 1); key =Convert.ToInt64(L.Substring(L.Length - 3 + 1, 2)); for (int i =x.GetLowerBound(0); i <= x.GetUpperBound(0)-1 ; i++) { s+=Convert.ToChar(Convert.ToInt64(x[i]) ^ key); }

[wuhuanghao]

s += (str.SubString(i - 1, 1) [0] ^ key).ToString() + ",";

提示：索引和长度必须引用该字符串内的位置！