从文件读取值到数组时，C# 表现得很奇怪
这是我的文件的结构：
1111111111111111111111111
2222222222222222222222222
3333333333333333333333333
4444444444444444444444444
5555555555555555555555555
6666666666666666666666666
7777777777777777777777777
8888888888888888888888888
9999999999999999999999999
0000000000000000000000000
0000000000000000000000000
0000000000000000000000000
0000000000000000000000000
0000000000000000000000000
这是我用来将其读入数组的代码：
using (StreamReader reader = new StreamReader(mapPath))
{
string line;
for (int i = 0; i < iMapHeight; i++)
{
if ((line = reader.ReadLine()) != null)
{
for (int j = 0; j < iMapWidth; j++)
{
iMap[i, j] = line[j];
}
}
}
}
我已经做了一些调试，并且 line[j] 正确地迭代了当前的每个字符读行。问题出在 iMap[i, j] 上。执行此代码块后，这就是 iMap 的内容：
- iMap {int[14, 25]} int[,]
[0, 0] 49 int
[0, 1] 49 int
[0, 2] 49 int
[0, 3] 49 int
[0, 4] 49 int
[0, 5] 49 int
[0, 6] 49 int
[0, 7] 49 int
[0, 8] 49 int
[0, 9] 49 int
[0, 10] 49 int
[0, 11] 49 int
[0, 12] 49 int
[0, 13] 49 int
[0, 14] 49 int
[0, 15] 49 int
[0, 16] 49 int
[0, 17] 49 int
[0, 18] 49 int
[0, 19] 49 int
[0, 20] 49 int
[0, 21] 49 int
[0, 22] 49 int
[0, 23] 49 int
[0, 24] 49 int
[1, 0] 50 int
[1, 1] 50 int
[1, 2] 50 int
[1, 3] 50 int
[1, 4] 50 int
[1, 5] 50 int
[1, 6] 50 int
[1, 7] 50 int
[1, 8] 50 int
[1, 9] 50 int
[1, 10] 50 int
[1, 11] 50 int
[1, 12] 50 int
[1, 13] 50 int
[1, 14] 50 int
[1, 15] 50 int
[1, 16] 50 int
[1, 17] 50 int
[1, 18] 50 int
[1, 19] 50 int
[1, 20] 50 int
[1, 21] 50 int
[1, 22] 50 int
[1, 23] 50 int
[1, 24] 50 int
[2, 0] 51 int
[2, 1] 51 int
[2, 2] 51 int
[2, 3] 51 int
[2, 4] 51 int
[2, 5] 51 int
[2, 6] 51 int
[2, 7] 51 int
[2, 8] 51 int
[2, 9] 51 int
[2, 10] 51 int
[2, 11] 51 int
[2, 12] 51 int
[2, 13] 51 int
[2, 14] 51 int
[2, 15] 51 int
[2, 16] 51 int
[2, 17] 51 int
[2, 18] 51 int
[2, 19] 51 int
[2, 20] 51 int
[2, 21] 51 int
[2, 22] 51 int
[2, 23] 51 int
[2, 24] 51 int
[3, 0] 52 int
[3, 1] 52 int
[3, 2] 52 int
[3, 3] 52 int
[3, 4] 52 int
[3, 5] 52 int
[3, 6] 52 int
[3, 7] 52 int
[3, 8] 52 int
[3, 9] 52 int
[3, 10] 52 int
[3, 11] 52 int
[3, 12] 52 int
[3, 13] 52 int
[3, 14] 52 int
[3, 15] 52 int
[3, 16] 52 int
[3, 17] 52 int
[3, 18] 52 int
[3, 19] 52 int
[3, 20] 52 int
[3, 21] 52 int
[3, 22] 52 int
[3, 23] 52 int
[3, 24] 52 int
[4, 0] 53 int
[4, 1] 53 int
[4, 2] 53 int
[4, 3] 53 int
[4, 4] 53 int
[4, 5] 53 int
[4, 6] 53 int
[4, 7] 53 int
[4, 8] 53 int
[4, 9] 53 int
[4, 10] 53 int
[4, 11] 53 int
[4, 12] 53 int
[4, 13] 53 int
[4, 14] 53 int
[4, 15] 53 int
[4, 16] 53 int
[4, 17] 53 int
[4, 18] 53 int
[4, 19] 53 int
[4, 20] 53 int
[4, 21] 53 int
[4, 22] 53 int
[4, 23] 53 int
[4, 24] 53 int
[5, 0] 54 int
[5, 1] 54 int
[5, 2] 54 int
[5, 3] 54 int
[5, 4] 54 int
[5, 5] 54 int
[5, 6] 54 int
[5, 7] 54 int
[5, 8] 54 int
[5, 9] 54 int
[5, 10] 54 int
[5, 11] 54 int
[5, 12] 54 int
[5, 13] 54 int
[5, 14] 54 int
[5, 15] 54 int
[5, 16] 54 int
[5, 17] 54 int
[5, 18] 54 int
[5, 19] 54 int
[5, 20] 54 int
[5, 21] 54 int
[5, 22] 54 int
[5, 23] 54 int
[5, 24] 54 int
[6, 0] 55 int
[6, 1] 55 int
[6, 2] 55 int
[6, 3] 55 int
[6, 4] 55 int
[6, 5] 55 int
[6, 6] 55 int
[6, 7] 55 int
[6, 8] 55 int
[6, 9] 55 int
[6, 10] 55 int
[6, 11] 55 int
[6, 12] 55 int
[6, 13] 55 int
[6, 14] 55 int
[6, 15] 55 int
[6, 16] 55 int
[6, 17] 55 int
[6, 18] 55 int
[6, 19] 55 int
[6, 20] 55 int
[6, 21] 55 int
[6, 22] 55 int
[6, 23] 55 int
[6, 24] 55 int
[7, 0] 56 int
[7, 1] 56 int
[7, 2] 56 int
[7, 3] 56 int
[7, 4] 56 int
[7, 5] 56 int
[7, 6] 56 int
[7, 7] 56 int
[7, 8] 56 int
[7, 9] 56 int
[7, 10] 56 int
[7, 11] 56 int
[7, 12] 56 int
[7, 13] 56 int
[7, 14] 56 int
[7, 15] 56 int
[7, 16] 56 int
[7, 17] 56 int
[7, 18] 56 int
[7, 19] 56 int
[7, 20] 56 int
[7, 21] 56 int
[7, 22] 56 int
[7, 23] 56 int
[7, 24] 56 int
[8, 0] 57 int
[8, 1] 57 int
[8, 2] 57 int
[8, 3] 57 int
[8, 4] 57 int
[8, 5] 57 int
[8, 6] 57 int
[8, 7] 57 int
[8, 8] 57 int
[8, 9] 57 int
[8, 10] 57 int
[8, 11] 57 int
[8, 12] 57 int
[8, 13] 57 int
[8, 14] 57 int
[8, 15] 57 int
[8, 16] 57 int
[8, 17] 57 int
[8, 18] 57 int
[8, 19] 57 int
[8, 20] 57 int
[8, 21] 57 int
[8, 22] 57 int
[8, 23] 57 int
[8, 24] 57 int
[9, 0] 48 int
[9, 1] 48 int
[9, 2] 48 int
[9, 3] 48 int
[9, 4] 48 int
[9, 5] 48 int
[9, 6] 48 int
[9, 7] 48 int
[9, 8] 48 int
[9, 9] 48 int
[9, 10] 48 int
[9, 11] 48 int
[9, 12] 48 int
[9, 13] 48 int
[9, 14] 48 int
[9, 15] 48 int
[9, 16] 48 int
[9, 17] 48 int
[9, 18] 48 int
[9, 19] 48 int
[9, 20] 48 int
[9, 21] 48 int
[9, 22] 48 int
[9, 23] 48 int
[9, 24] 48 int
[10, 0] 48 int
[10, 1] 48 int
[10, 2] 48 int
[10, 3] 48 int
[10, 4] 48 int
[10, 5] 48 int
[10, 6] 48 int
[10, 7] 48 int
[10, 8] 48 int
[10, 9] 48 int
[10, 10] 48 int
[10, 11] 48 int
[10, 12] 48 int
[10, 13] 48 int
[10, 14] 48 int
[10, 15] 48 int
[10, 16] 48 int
[10, 17] 48 int
[10, 18] 48 int
[10, 19] 48 int
[10, 20] 48 int
[10, 21] 48 int
[10, 22] 48 int
[10, 23] 48 int
[10, 24] 48 int
[11, 0] 48 int
[11, 1] 48 int
[11, 2] 48 int
[11, 3] 48 int
[11, 4] 48 int
[11, 5] 48 int
[11, 6] 48 int
[11, 7] 48 int
[11, 8] 48 int
[11, 9] 48 int
[11, 10] 48 int
[11, 11] 48 int
[11, 12] 48 int
[11, 13] 48 int
[11, 14] 48 int
[11, 15] 48 int
[11, 16] 48 int
[11, 17] 48 int
[11, 18] 48 int
[11, 19] 48 int
[11, 20] 48 int
[11, 21] 48 int
[11, 22] 48 int
[11, 23] 48 int
[11, 24] 48 int
[12, 0] 48 int
[12, 1] 48 int
[12, 2] 48 int
[12, 3] 48 int
[12, 4] 48 int
[12, 5] 48 int
[12, 6] 48 int
[12, 7] 48 int
[12, 8] 48 int
[12, 9] 48 int
[12, 10] 48 int
[12, 11] 48 int
[12, 12] 48 int
[12, 13] 48 int
[12, 14] 48 int
[12, 15] 48 int
[12, 16] 48 int
[12, 17] 48 int
[12, 18] 48 int
[12, 19] 48 int
[12, 20] 48 int
[12, 21] 48 int
[12, 22] 48 int
[12, 23] 48 int
[12, 24] 48 int
[13, 0] 48 int
[13, 1] 48 int
[13, 2] 48 int
[13, 3] 48 int
[13, 4] 48 int
[13, 5] 48 int
[13, 6] 48 int
[13, 7] 48 int
[13, 8] 48 int
[13, 9] 48 int
[13, 10] 48 int
[13, 11] 48 int
[13, 12] 48 int
[13, 13] 48 int
[13, 14] 48 int
[13, 15] 48 int
[13, 16] 48 int
[13, 17] 48 int
[13, 18] 48 int
[13, 19] 48 int
[13, 20] 48 int
[13, 21] 48 int
[13, 22] 48 int
[13, 23] 48 int
[13, 24] 48 int
抱歉，格式很差，但它很大 :P 我不知道这些值是从哪里得到的，有人有解释吗？谢谢 ：）
This is the structure of my file:
1111111111111111111111111
2222222222222222222222222
3333333333333333333333333
4444444444444444444444444
5555555555555555555555555
6666666666666666666666666
7777777777777777777777777
8888888888888888888888888
9999999999999999999999999
0000000000000000000000000
0000000000000000000000000
0000000000000000000000000
0000000000000000000000000
0000000000000000000000000
And this is the code I'm using to read it into an array:
using (StreamReader reader = new StreamReader(mapPath))
{
string line;
for (int i = 0; i < iMapHeight; i++)
{
if ((line = reader.ReadLine()) != null)
{
for (int j = 0; j < iMapWidth; j++)
{
iMap[i, j] = line[j];
}
}
}
}
I have done some debugging, and line[j] correctly iterates through each character in the currently read line. The problem lies with iMap[i, j]. After this block of code executes, this is the contents of iMap:
- iMap {int[14, 25]} int[,]
[0, 0] 49 int
[0, 1] 49 int
[0, 2] 49 int
[0, 3] 49 int
[0, 4] 49 int
[0, 5] 49 int
[0, 6] 49 int
[0, 7] 49 int
[0, 8] 49 int
[0, 9] 49 int
[0, 10] 49 int
[0, 11] 49 int
[0, 12] 49 int
[0, 13] 49 int
[0, 14] 49 int
[0, 15] 49 int
[0, 16] 49 int
[0, 17] 49 int
[0, 18] 49 int
[0, 19] 49 int
[0, 20] 49 int
[0, 21] 49 int
[0, 22] 49 int
[0, 23] 49 int
[0, 24] 49 int
[1, 0] 50 int
[1, 1] 50 int
[1, 2] 50 int
[1, 3] 50 int
[1, 4] 50 int
[1, 5] 50 int
[1, 6] 50 int
[1, 7] 50 int
[1, 8] 50 int
[1, 9] 50 int
[1, 10] 50 int
[1, 11] 50 int
[1, 12] 50 int
[1, 13] 50 int
[1, 14] 50 int
[1, 15] 50 int
[1, 16] 50 int
[1, 17] 50 int
[1, 18] 50 int
[1, 19] 50 int
[1, 20] 50 int
[1, 21] 50 int
[1, 22] 50 int
[1, 23] 50 int
[1, 24] 50 int
[2, 0] 51 int
[2, 1] 51 int
[2, 2] 51 int
[2, 3] 51 int
[2, 4] 51 int
[2, 5] 51 int
[2, 6] 51 int
[2, 7] 51 int
[2, 8] 51 int
[2, 9] 51 int
[2, 10] 51 int
[2, 11] 51 int
[2, 12] 51 int
[2, 13] 51 int
[2, 14] 51 int
[2, 15] 51 int
[2, 16] 51 int
[2, 17] 51 int
[2, 18] 51 int
[2, 19] 51 int
[2, 20] 51 int
[2, 21] 51 int
[2, 22] 51 int
[2, 23] 51 int
[2, 24] 51 int
[3, 0] 52 int
[3, 1] 52 int
[3, 2] 52 int
[3, 3] 52 int
[3, 4] 52 int
[3, 5] 52 int
[3, 6] 52 int
[3, 7] 52 int
[3, 8] 52 int
[3, 9] 52 int
[3, 10] 52 int
[3, 11] 52 int
[3, 12] 52 int
[3, 13] 52 int
[3, 14] 52 int
[3, 15] 52 int
[3, 16] 52 int
[3, 17] 52 int
[3, 18] 52 int
[3, 19] 52 int
[3, 20] 52 int
[3, 21] 52 int
[3, 22] 52 int
[3, 23] 52 int
[3, 24] 52 int
[4, 0] 53 int
[4, 1] 53 int
[4, 2] 53 int
[4, 3] 53 int
[4, 4] 53 int
[4, 5] 53 int
[4, 6] 53 int
[4, 7] 53 int
[4, 8] 53 int
[4, 9] 53 int
[4, 10] 53 int
[4, 11] 53 int
[4, 12] 53 int
[4, 13] 53 int
[4, 14] 53 int
[4, 15] 53 int
[4, 16] 53 int
[4, 17] 53 int
[4, 18] 53 int
[4, 19] 53 int
[4, 20] 53 int
[4, 21] 53 int
[4, 22] 53 int
[4, 23] 53 int
[4, 24] 53 int
[5, 0] 54 int
[5, 1] 54 int
[5, 2] 54 int
[5, 3] 54 int
[5, 4] 54 int
[5, 5] 54 int
[5, 6] 54 int
[5, 7] 54 int
[5, 8] 54 int
[5, 9] 54 int
[5, 10] 54 int
[5, 11] 54 int
[5, 12] 54 int
[5, 13] 54 int
[5, 14] 54 int
[5, 15] 54 int
[5, 16] 54 int
[5, 17] 54 int
[5, 18] 54 int
[5, 19] 54 int
[5, 20] 54 int
[5, 21] 54 int
[5, 22] 54 int
[5, 23] 54 int
[5, 24] 54 int
[6, 0] 55 int
[6, 1] 55 int
[6, 2] 55 int
[6, 3] 55 int
[6, 4] 55 int
[6, 5] 55 int
[6, 6] 55 int
[6, 7] 55 int
[6, 8] 55 int
[6, 9] 55 int
[6, 10] 55 int
[6, 11] 55 int
[6, 12] 55 int
[6, 13] 55 int
[6, 14] 55 int
[6, 15] 55 int
[6, 16] 55 int
[6, 17] 55 int
[6, 18] 55 int
[6, 19] 55 int
[6, 20] 55 int
[6, 21] 55 int
[6, 22] 55 int
[6, 23] 55 int
[6, 24] 55 int
[7, 0] 56 int
[7, 1] 56 int
[7, 2] 56 int
[7, 3] 56 int
[7, 4] 56 int
[7, 5] 56 int
[7, 6] 56 int
[7, 7] 56 int
[7, 8] 56 int
[7, 9] 56 int
[7, 10] 56 int
[7, 11] 56 int
[7, 12] 56 int
[7, 13] 56 int
[7, 14] 56 int
[7, 15] 56 int
[7, 16] 56 int
[7, 17] 56 int
[7, 18] 56 int
[7, 19] 56 int
[7, 20] 56 int
[7, 21] 56 int
[7, 22] 56 int
[7, 23] 56 int
[7, 24] 56 int
[8, 0] 57 int
[8, 1] 57 int
[8, 2] 57 int
[8, 3] 57 int
[8, 4] 57 int
[8, 5] 57 int
[8, 6] 57 int
[8, 7] 57 int
[8, 8] 57 int
[8, 9] 57 int
[8, 10] 57 int
[8, 11] 57 int
[8, 12] 57 int
[8, 13] 57 int
[8, 14] 57 int
[8, 15] 57 int
[8, 16] 57 int
[8, 17] 57 int
[8, 18] 57 int
[8, 19] 57 int
[8, 20] 57 int
[8, 21] 57 int
[8, 22] 57 int
[8, 23] 57 int
[8, 24] 57 int
[9, 0] 48 int
[9, 1] 48 int
[9, 2] 48 int
[9, 3] 48 int
[9, 4] 48 int
[9, 5] 48 int
[9, 6] 48 int
[9, 7] 48 int
[9, 8] 48 int
[9, 9] 48 int
[9, 10] 48 int
[9, 11] 48 int
[9, 12] 48 int
[9, 13] 48 int
[9, 14] 48 int
[9, 15] 48 int
[9, 16] 48 int
[9, 17] 48 int
[9, 18] 48 int
[9, 19] 48 int
[9, 20] 48 int
[9, 21] 48 int
[9, 22] 48 int
[9, 23] 48 int
[9, 24] 48 int
[10, 0] 48 int
[10, 1] 48 int
[10, 2] 48 int
[10, 3] 48 int
[10, 4] 48 int
[10, 5] 48 int
[10, 6] 48 int
[10, 7] 48 int
[10, 8] 48 int
[10, 9] 48 int
[10, 10] 48 int
[10, 11] 48 int
[10, 12] 48 int
[10, 13] 48 int
[10, 14] 48 int
[10, 15] 48 int
[10, 16] 48 int
[10, 17] 48 int
[10, 18] 48 int
[10, 19] 48 int
[10, 20] 48 int
[10, 21] 48 int
[10, 22] 48 int
[10, 23] 48 int
[10, 24] 48 int
[11, 0] 48 int
[11, 1] 48 int
[11, 2] 48 int
[11, 3] 48 int
[11, 4] 48 int
[11, 5] 48 int
[11, 6] 48 int
[11, 7] 48 int
[11, 8] 48 int
[11, 9] 48 int
[11, 10] 48 int
[11, 11] 48 int
[11, 12] 48 int
[11, 13] 48 int
[11, 14] 48 int
[11, 15] 48 int
[11, 16] 48 int
[11, 17] 48 int
[11, 18] 48 int
[11, 19] 48 int
[11, 20] 48 int
[11, 21] 48 int
[11, 22] 48 int
[11, 23] 48 int
[11, 24] 48 int
[12, 0] 48 int
[12, 1] 48 int
[12, 2] 48 int
[12, 3] 48 int
[12, 4] 48 int
[12, 5] 48 int
[12, 6] 48 int
[12, 7] 48 int
[12, 8] 48 int
[12, 9] 48 int
[12, 10] 48 int
[12, 11] 48 int
[12, 12] 48 int
[12, 13] 48 int
[12, 14] 48 int
[12, 15] 48 int
[12, 16] 48 int
[12, 17] 48 int
[12, 18] 48 int
[12, 19] 48 int
[12, 20] 48 int
[12, 21] 48 int
[12, 22] 48 int
[12, 23] 48 int
[12, 24] 48 int
[13, 0] 48 int
[13, 1] 48 int
[13, 2] 48 int
[13, 3] 48 int
[13, 4] 48 int
[13, 5] 48 int
[13, 6] 48 int
[13, 7] 48 int
[13, 8] 48 int
[13, 9] 48 int
[13, 10] 48 int
[13, 11] 48 int
[13, 12] 48 int
[13, 13] 48 int
[13, 14] 48 int
[13, 15] 48 int
[13, 16] 48 int
[13, 17] 48 int
[13, 18] 48 int
[13, 19] 48 int
[13, 20] 48 int
[13, 21] 48 int
[13, 22] 48 int
[13, 23] 48 int
[13, 24] 48 int
Sorry for the lame formatting, but it's huge :P
I have no idea where it's getting these values from, does anyone have an explanation? Thanks :)
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评论（2）
这些是字符“0”、“1”等的 ASCII 值...
请使用此值：
如果您希望能够处理无效输入，您可能还需要使用
int.TryParse。These are the ASCII values of the character '0', '1' etc...
Use this instead:
You might also want to use
int.TryParseif you want to be able to handle invalid input.您正在从输入中读取字符并存储它们的 ASCII 值。如果您知道它们始终是数字，则在存储时只需从每个值中减去 48 即可。
You are reading characters from the input and storing their ASCII values. If you know they will always be digits, just subtract 48 from each value when storing it.