void qsort(void *base, int nelem, unsigned int width, int ( * pfCompare)( const void *, const void *));void
C/C++中有一个迅速排序的尺度库函数 qsort ,在stdlib.h 中声明,其原型为:
void qsort(void *base, int nelem, unsigned int width, int ( * pfCompare)( const void *, const void *));void