遍历所有匹配

#include 
     
      #include 
      
       using namespace std;int main(){    wstring wstr = L"我是1994年出生的，我今年25岁了。";    wsmatch wsm;    wregex wre(L"[0-9]+");    wsregex_iterator itr1(wstr.begin(), wstr.end(), wre);    wsregex_iterator itr2;    for (wsregex_iterator itr = itr1; itr != itr2; ++itr)    {        wcout << itr->str() << endl;    }    return 0;}
      
     

在目标文本中进行搜索

#include 
     
      #include 
      
       using namespace std;int main(){    wstring text = L"百度搜索引擎https://www.baidu.com/^_^";    wsmatch wsm;    wregex wre(L"https?://(.+?)/");    if (regex_search(text, wsm, wre))    {        wcout << wsm.str(1) << endl;    }    const wchar_t *str = L"百度搜索引擎https://www.baidu.com/^_^";    wcmatch wcm;    if (regex_search(str, wcm, wre))    {        wcout << wsm[1] << endl;    }    return 0;}
      
     

完全匹配

#include 
     
      #include 
      
       using namespace std;int main(){    wstring text = L"long long ago";    wstring text2 = L"long long";    wregex wre(L".+ng");    wcout << boolalpha << regex_match(text, wre) << endl;    wcout << regex_match(text2, wre) << endl;    return 0;}