现在在跟着视频做一个项目，但是Qt5中死都不认中文，我用中文做注释，它就给我以下警告：
warning: C4819: The file contains a character that cannot be represented in the current code page (936). Save the file in Unicode format to prevent data loss w
warning: C4819: The file contains a character that cannot be represented in the current code page (936). Save the file in Unicode format to prevent data loss w
