-Squash commits about 07
add template 07

update 07-CharacterAndString

update exercises

update 07-docs

update 07-docs

update 07-docs

update 07-docs

update exercises

update exercises
fix 07-docs
fix typo and expression
change <br> to double white-space
add to another split method
fix table
fix text
Merge pull request #9 from techfun-org/dev-07

add 07 documents