Question

this is code

QWebView* webView=new QWebView(this); 
 webView->page()->setLinkDelegationPolicy(QWebPage::DelegateAllLinks);
webView->load(QUrl(newsUrl));

After Delete any case, there will be some memory can not be deleted

Answer 1

If you set the object parent in the constructor using this

( QWebView* webView=new QWebView(this); )

Then you should not call delete directly the memory will be freed when the class you provided as a parent will be destroyed

If you want to use delete then simply construct the object like this:

QWebView* webView=new QWebView();