Why in “:normal”command ^[ seems doesn't work with A? (vim)

Question

Today, I learnt a bit of vim normal command, and below is my experiment:

:normal i Insert ^[ yyp
:normal A Append ^[ yyp


# RESULT OF EXECUTE FIRST COMMAND FOR SEVERAL TIMES
 Insert Insert  
  Insert Insert Insert  
   Insert Insert Insert Insert  
    Insert Insert Insert Insert Insert  
    Insert Insert Insert Insert Insert  


 # RESULT OF EXECUTE SECOND COMMAND FOR SEVERAL TIMES
 Append  Append  Append  Append  Append  Append 

Why the second command ignored the yyp part? How to fix it?

Answer 1

只需删除^ [和yyp之间的空格