I have an ACR122U Contactless NFC reader. I bought a lot of blank RFID Mifare 4k tags. Their defau开发者_开发百科lt Authentication KEY A and KEY B is FF FF FF FF FF FF.
I am profiling my MVC app and the speed from the Performance Explorer is around 500 ms (50 ms code, 450ms SQL roundtrips that won\'t exist in deployment).
I am processing XML coming from server which contains both images and data in one C# function (compiled 32 bit).
I\'m trying to play background music along with sound effects using Qt. However, I can\'t get more than one sound to play at once. For example:
加载中,请稍侯......