LaTeX text with border

1. Use the framed macro package

\ Usepackage {framed}

You can use verb |... | and verbatim without using the cprotect macro package's cprotect command.

\ Begin {framed} \ verb | \ documentstyle [ifthen, 12pt, titlepage] {article} | \ end {framed}

The following items have been used before and will be used later.

2. Use the listings macro package parameter [frame = single]

3. Use the tabular + minipage Environment

4. Use the boxedminipage Environment

5. Combination of fbox, parbox, and other commands