简单的电话录音源码，具备来电显示、应答、呼叫等功能。-Simple telephone record source program with the function of Show Phone Number, answer and call.

这是一个背景声音软件,可在接电话前设置背景音乐-This is a software background voices can be set up to answer the phone before the background music

可以在代码中导入题库，编译后的手机APP可以在选正确答案的情况下显示下一道题目。(The item bank can be imported in the code. The compiled phone APP can display the next topic in the case of selecting the correct answer.)