这个是报错的信息，只要使用了WEBVIEW控件就出现这样的问题，这个是因为缺少头文件么？
./debug\dialog_login.o:dialog_login.cpp:(.text$_ZN15Ui_dialog_login7setupUiEP7QDialog[Ui_dialog_login::setupUi(QDialog*)]+0xfe8): undefined reference to `_imp___ZN8QWebViewC1EP7QWidget'
./debug\dialog_login.o:dialog_login.cpp:(.text$_ZN15Ui_dialog_login7setupUiEP7QDialog[Ui_dialog_login::setupUi(QDialog*)]+0x1106): undefined reference to `_imp___ZN8QWebView6setUrlERK4QUrl'
./debug\dialog_login.o:dialog_login.cpp:(.text$_ZN15Ui_dialog_login7setupUiEP7QDialog[Ui_dialog_login::setupUi(QDialog*)]+0x115c): undefined reference to `_imp___ZN8QWebView13setZoomFactorEd'
collect2: ld returned 1 exit status
mingw32-make[1]: *** [debug\maintest.exe] Error 1
mingw32-make: *** [debug] Error 2
The process "C:/QT/mingw/bin/mingw32-make.exe" exited with code %2.
