Wait until your baby is a year old before giving her cow's milk as a main drink. It's fine to use a little cow's milk in your baby's food once she's started on solids. Yoghurt and mild cheese are also fine to feed your baby from six months. But cow's milk as her main drink will leave her short of important nutrients before she's one year old.
The underscore sign is mainly used to show a space where a space is not allowed, such as in internet usernames, email addresses and some computer programs. The underscore looks like a dash below the letters ( _ ).
In C and C++ , keywords and standard library identifiers are mostly lowercase. In the C standard library, abbreviated names are the most common (e.g. isalnum for a function testing whether a character is alphanumeric), while the C++ standard library often uses an underscore as a word separator (e.g. out_of_range).