public void Luu(string filePath)
{
StreamWriter writer = new StreamWriter(filePath);
for (int i = 0; i < mangPS.Length; i++)
{
string s = $"{mangPS[i]}";
writer.WriteLine(s);
writer.Close();
}
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prog.cs(1,9): error CS1525: Unexpected symbol `void', expecting `class', `delegate', `enum', `interface', `partial', `ref', or `struct'
Compilation failed: 1 error(s), 0 warnings