Vim把命令不允许双引号（因此没有转义序列）

I'm trying to run a script containing the Vim put command. I want a tab character in my string. The following code works, but the '\t' isn't interpreted due to the single quotes. When I replace the string with double quotes, the error messages seem to suggest that the first double quote ended the command. Code is...I'm trying to run a script containing the Vim p