我想从文本框中以文本文件中的指定值写入数据。这是一个例子:
item_begin etcitem 3344 item_type=etcitem
是第一行,item_begin weapon 3343 item_type=weapon
是第二行。好吧,我想用item_type=weapon
替换第二行的item_type=armor
。到目前为止,这是代码:
var data2 = File.WriteAllLines("itemdata.txt")
.Where(x => x.Contains("3343"))
.Take(1)
.SelectMany(x => x.Split('\t'))
.Select(x => x.Split('='))
.Where(x => x.Length > 1)
.ToDictionary(x => x[0].Trim(), x => x[1]);
但是WriteAllLines返回错误。 这是readline部分代码:
var data = File.ReadLines("itemdata.txt")
.Where(x => x.Contains("3343"))
.Take(1)
.SelectMany(x => x.Split('\t'))
.Select(x => x.Split('='))
.Where(x => x.Length > 1)
.ToDictionary(x => x[0].Trim(), x => x[1]);
//call values
textitem_type.Text = data["item_type"];
并希望在阅读后写出我在textitem_type.Text
上更改的相同值。
我用它来重新加载,但是用line替换所有具有相同名称的值,并在文本中仅返回1行。代码:
private void button2_Click(object sender, EventArgs e)
{
var data = File
.ReadLines("itemdata.txt")
.Where(x => x.Contains(itemSrchtxt.Text))
.Take(1)
.SelectMany(x => x.Split('\t'))
.Select(x => x.Split('='))
.Where(x => x.Length > 1)
.ToDictionary(x => x[0].Trim(), x => x[1]);
StreamReader reader = new StreamReader(Directory.GetCurrentDirectory() + @"\itemdata.txt");
string content = reader.ReadLine();
reader.Close();
content = Regex.Replace(content, data["item_type"], textitem_type.Text);
StreamWriter write = new StreamWriter(Directory.GetCurrentDirectory() + @"\itemdata.txt");
write.WriteLine(content);
write.Close();
}
答案 0 :(得分:0)
请尝试将 WriteAllLines 替换为 ReadAllLines
var data2 = File.ReadAllLines("itemdata.txt");
//use linq if you want, it just an example fo understandin
Foreach (var dataline in data2 )
{
if (dataline.Contains("3343"))
dataline = "item_begin weapon 3343 item_type=weapon" //of course you can use the split, it just an example
}
File.WriteAllLines("itemdata.txt", data2);