C# 中怎么将一维数组保存为txt文本并保存！

//保存到本地的路径
string mFileFullname = @"C:\999\一维文本.txt";
//编写器
System.IO.StreamWriter mStreamWriter = new System.IO.StreamWriter(mFileFullname, false, System.Text.Encoding.UTF8);
string[] mStrs1 = { "1", "2", "3", "4" };
for (int i = 0; i < mStrs1.Length; i++)
{
mStreamWriter.WriteLine(mStrs1[i]);
}
//用完StreamWriter的对象后一定要及时销毁
mStreamWriter.Close();
mStreamWriter.Dispose();
mStreamWriter = null;