thanks your answer。
My Englisg is not good。
These days I find the problem。
the problem code is:
result = system->init(32, FMOD_INIT_STREAM_FROM_UPDATE, &outputPath);
Modify the outputPath is :
char outputPath[200] = “outputpath”;
result = system->init(32, FMOD_INIT_STREAM_FROM_UPDATE, outputPath);
the outputPath is pointer,The right is ‘char path’ not pointer path。now it can output wav file。