math.h 函数说明一览函数说明acos()求反余弦的值cos()求余弦值cosh()求双曲余玄值exp()e的次幂函数(以e为底的x次方值)frexp()把一个浮点数分解为尾数和指数ldex... 函数 说明 acos() 求反余弦的值 cos() 求余弦值...

configure: error: jpeglib.h not found.yum-y install libjpeg-develyum -y install libjpeg-develjpeglib.h

configure: error: png.h not found.错误的解决方法yum install libpng-develyum install libpng-develpng.h

pthread_t在头文件/usr/include/bits/pthreadtypes.h中定义：typedef unsigned long int pthread_t;复制代码它是一个线程的标识符。 #include <pthread.h>   解决。

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I need to capture audio clips as WAV files that I can then pass to another bit of python for processing. The problem is that I need to determine when there is audio present and then record it, stop when it goes silent and then pass that file to the processing module. ...