编程习惯

编程习惯

1.给数组赋值

    int i=-1;

    while(++i<aryCount) a[i]=0;

2.利用指针定位赋值

 float *pScales=m_scales+m_scalesCount;//m_scales为数组的头，m_scalesCount为元素个数，pScales为尾部哨兵

 while(--pScales>=m_scales) {...}

3.四舍五入

        int a=int(b+.5);