public static void AppendAllText(string filePath, string text, Encoding encoding, long maxLength)
{
using (FileStream file = RetryFile.OpenAppend(filePath)) {
// 如果文件已超过指定长度，就不再写入
if (maxLength > 0 && file.Position >= maxLength)
{
return;
}
if (file.Position == 0)
{
// 写入 BOM
byte[] preamble = encoding.GetPreamble();
if (preamble.Length != 0)
{
file.Write(preamble, 0, preamble.Length);
}
}
byte[] bb = encoding.GetBytes(text);
file.Write(bb, 0, bb.Length);
file.Flush(true);
}
}