C# 如何将数组的内容写入文本文件？C＃
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How to write contents of an array to a text file? C#
提问by Boneyards
I'm trying to write the contents of an array to a text file. I've created the file, assigned text boxes to the array (not sure if correctly). Now I want to write the contents of the array to a text file. The streamwriter part is where I'm stuck at the bottom. Not sure of the syntax.
我正在尝试将数组的内容写入文本文件。我已经创建了文件，为数组分配了文本框（不确定是否正确）。现在我想将数组的内容写入文本文件。流作家部分是我被困在底部的地方。不确定语法。
if ((!File.Exists("scores.txt"))) //Checking if scores.txt exists or not
{
FileStream fs = File.Create("scores.txt"); //Creates Scores.txt
fs.Close(); //Closes file stream
}
List<double> scoreArray = new List<double>();
TextBox[] textBoxes = { week1Box, week2Box, week3Box, week4Box, week5Box, week6Box, week7Box, week8Box, week9Box, week10Box, week11Box, week12Box, week13Box };
for (int i = 0; i < textBoxes.Length; i++)
{
scoreArray.Add(Convert.ToDouble(textBoxes[i].Text));
}
StreamWriter sw = new StreamWriter("scores.txt", true);
采纳答案by Enigmativity
You could just do this:
你可以这样做：
System.IO.File.WriteAllLines("scores.txt",
textBoxes.Select(tb => (double.Parse(tb.Text)).ToString()));
回答by Miguel Angelo
You may try to write to the file before you close it... after the FileStream fs = File.Create("scores.txt");line of code.
您可以尝试在关闭文件之前写入文件...在FileStream fs = File.Create("scores.txt");代码行之后。
You may also want to use a usingfor that.
Like this:
您可能还想为此使用 a using。像这样：
if ((!File.Exists("scores.txt"))) //Checking if scores.txt exists or not
{
using (FileStream fs = File.Create("scores.txt")) //Creates Scores.txt
{
// Write to the file here!
}
}
回答by opewix
using (FileStream fs = File.Open("scores.txt"))
{
StreamWriter sw = new StreamWriter(fs);
scoreArray.ForEach(r=>sw.WriteLine(r));
}
回答by Herbert
You can convert your list to an array then write the all array textfile
您可以将列表转换为数组，然后写入所有数组文本文件
double[] myArray = scoreArray.ToArray();
ile.WriteAllLines("scores.txt", Array.ConvertAll(myArray, x => x.ToString()));
