共用方式為

ws

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Skips white space in the stream.

template class<Elem, Tr> 
   basic_istream<Elem, Tr>& ws( 
   basic_istream<Elem, Tr>& _Istr 
);

Parameters

  • _Istr
    A stream.

Return Value

The stream.

Remarks

The manipulator extracts and discards any elements ch for which use_facet< ctype<Elem> >(getloc). is(ctype<Elem>::space, ch) is true.

The function calls setstate(eofbit) if it encounters end of file while extracting elements. It returns _Istr.

Example

See operator>> for an example of using ws.

Requirements

Header: <istream>

Namespace: std

See Also

Reference

iostream Programming

iostreams Conventions