带重复元素的全排列(想要的自己下)

int sample_rate=-1; int channel_count=-1; int sample_n_bytes=-1; char sample_coding[128]={""}; char sample_byte_format[128]={""}; int sample_count=-1; float start_time=.0; float end_time=.0; int sample_checksum=-1; char channel_type[128]={""}; char speech_type[128]={""}; char language[128