如何在 Opera Mobile上访问浏览器控制台Android ？
浏览器控制台=类似于Chrome上的开发人员控制台窗口的东西，按下键盘快捷键Ctrl Shift J
How can I access the browser console on Opera Mobile on Android?
Browser console = something similar to the developer console window on Chrome, when pressing the keyboard shortcut Ctrl Shift J
You can try this app that I developed it may help you,
F12 | Browser Console for Mobile Devices
But if you are developing something and want to access Console for it, then following the steps in following link will be a better option https://developers.google.com/web/tools/chrome-devtools/remote-debugging