txt2.autoSize = true; <-- 자동 줄 늘림
txt2.border=false; <-- 태두리 제거
[example] [원문] : http://www.actionscript.org/forums/showthread.php3?s=&threadid=26876
this.createTextField("tmp", 100, 25, 25, 100, 40);
this.tmp.autoSize = "center";
this.tmp.border = true;
this.tmp.multiline = true;
this.tmp.wordWrap = true;
this.tmp.text = "1 23 456 7890 12345 678901 2345678 90123456 789012345 678901234 1 23 456 7890 12345 678901 2345678 90123456 789012345 678901234 ";
this.tmp.autoSize = "center";
this.tmp.border = true;
this.tmp.multiline = true;
this.tmp.wordWrap = true;
this.tmp.text = "1 23 456 7890 12345 678901 2345678 90123456 789012345 678901234 1 23 456 7890 12345 678901 2345678 90123456 789012345 678901234 ";