在Memo中加入字符串怎样换行？

Question

想得到这样的效果:
asdfasdf
asdfasdffffff我这样写:
memo1.Text:=Memo1.Text+'asdfasdf';
memo1.Text:=memo1.Text+'asdfasdffffff';在第一句后面加什么字符就可以换行了？？

Answer 1

memo1.Text:=Memo1.Text+'asdfasdf'#13;

Answer 2

memo1.Text:=Memo1.Text+'asdfasdf'#13#10;

Answer 3

memo1.Text:=Memo1.Text+'asdfasdf'+char(13);

Answer 4

Memo1.Lines.Add('asdfasdf');
Memo1.Lines.Add('asdfasdffffff');