standard C++ string class ?

Is there any example to show how to use the standard C++ string class?

With '#include <string.h> ' I always get an error in the VSC editor/compiler when allocating an 'string myString = ""; ' . The same with std::string.

Or do I need an additional extension in VSC  for pico 2? I have installed the 'C/C++'  and  'C/C++ Extension Pack'.

Thanks, Peter