[英]Splitting text file into 2D array
這是我要拆分為2D數組的文本文件
"YHOO",36.86,21,13873900,37.00 "GOOG",684.11,1114,1821650,686.72 "MSFT",50.54,3993,31910300,50.65 "AAPL",94.40,28201,39817000,94.26
這是我已經實現的代碼,但是無法正常工作
String input = File.ReadAllText(@"..\..\Data\stockInfo.txt");
int i = 0, j = 0;
string[,] result = new string[3, 5];
foreach (var row in input.Split('\n'))
{
j = 0;
foreach (var col in row.Trim().Split(','))
{
result[i, j] = string.Parse(col.Trim());
j++;
}
i++;
}
鋸齒狀的數組String[][]
(數組的數組)通常比二維的String[,]
更靈活:
string[][] result = File
.ReadLines(@"..\..\Data\stockInfo.txt")
.Select(line => line.Split(','))
.ToArray();
如果您堅持使用2D數組 ,則必須放置效率較低的代碼
string[] lines = File.ReadAllLines(@"..\..\Data\stockInfo.txt");
string[,] result = null;
for (int i = 0; i < lines.Count; ++i) {
string[] items = lines.Split(',');
if (null == result)
result = new string[lines.Count, items.Length];
for (int j = 0; j < items.Length; ++j)
result[i, j] = items[j];
}
數組大小錯誤。 另外,您不需要string.Parse,因為Split的輸出是IEnumerable的字符串
int i = 0, j = 0;
string[,] result = new string[4, 5];
foreach (var row in input.Split('\n'))
{
j = 0;
foreach (var col in row.Trim().Split(','))
{
result[i, j] = col.Trim();
j++;
}
i++;
}
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