EBCDIC到ASCII转换.出界错误.在C#中

Question

我尝试使用此常规转换顺序在C#中创建EBCDIC到ASCII对流器(如下所示).基本上程序从ASCII转换为等效整数,并从那里使用下面的顺序进入EDCDIC.

现在,当我尝试在C#中编译它并尝试给出一个EBCDIC字符串(从另一台计算机的另一个文件中获取)时,它显示某些EBCDIC字符的"Out of Bound"异常.为什么这样？它是关于形成?? 还是C#?? 还是窗户？

额外:我尝试使用0..255数字的循环打印出所有ASCII和EBCDIC字符,但仍然没有显示许多EBCDIC字符.我错过了任何标准吗？

整个代码如下:

public string convertFromEBCDICtoASCII(string inputEBCDICString, int initialPos, int endPos)
    {
        string inputSubString = inputEBCDICString.Substring(initialPos, endPos);
        int[] e2a = new int[256]{
                                    0, 1, 2, 3,156, 9,134,127,151,141,142, 11, 12, 13, 14, 15,
                                    16, 17, 18, 19,157,133, 8,135, 24, 25,146,143, 28, 29, 30, 31,
                                    128,129,130,131,132, 10, 23, 27,136,137,138,139,140, 5, 6, 7,
                                    144,145, 22,147,148,149,150, 4,152,153,154,155, 20, 21,158, 26,
                                    32,160,161,162,163,164,165,166,167,168, 91, 46, 60, 40, 43, 33,
                                    38,169,170,171,172,173,174,175,176,177, 93, 36, 42, 41, 59, 94,
                                    45, 47,178,179,180,181,182,183,184,185,124, 44, 37, 95, 62, 63,
                                    186,187,188,189,190,191,192,193,194, 96, 58, 35, 64, 39, 61, 34,
                                    195, 97, 98, 99,100,101,102,103,104,105,196,197,198,199,200,201,
                                    202,106,107,108,109,110,111,112,113,114,203,204,205,206,207,208,
                                    209,126,115,116,117,118,119,120,121,122,210,211,212,213,214,215,
                                    216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,
                                    123, 65, 66, 67, 68, 69, 70, 71, 72, 73,232,233,234,235,236,237,
                                    125, 74, 75, 76, 77, 78, 79, 80, 81, 82,238,239,240,241,242,243,
                                    92,159, 83, 84, 85, 86, 87, 88, 89, 90,244,245,246,247,248,249,
                                    48, 49, 50, 51, 52, 53, 54, 55, 56, 57,250,251,252,253,254,255
                            };
        char chrItem = Convert.ToChar("0");
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < inputSubString.Length; i++)
        {
            try
            {
                chrItem = Convert.ToChar(inputSubString.Substring(i, 1));
                sb.Append(Convert.ToChar(e2a[(int)chrItem]));
                sb.Append((int)chrItem);
                sb.Append((int)00);
            }
            catch (Exception ex)
            {
                Console.WriteLine("//" + ex.Message);
                return string.Empty;
            }
        }
        string result = sb.ToString();
        sb = null;
        return result;
    }

Answer 1

您没有显示生成错误的代码,但如果您使用该字符作为数组的索引,您应该知道C#使用Unicode(2字节)字符.字符代码可以一直到64k.这肯定会超出您的阵列范围.