Question

num[]={0x80,0xc0,0xe0,0xf0,0xf8,0xfc,0xfe,0xff,0x7f,0x3f,0x1f,0x0f,0x07,0x03,0x01,0x00}什么意思？

51单片机P0口接8各不同阻值的电阻，输出16分段的正弦波
num[]={0x80,0xc0,0xe0,0xf0,0xf8,0xfc,0xfe,0xff,0x7f,0x3f,0x1f,0x0f,0x07,0x03,0x01,0x00};
...............
P0 =num[time];
time++;
if(time == 16)
{
time = 0;
}

Answer 1

num[]是一维数组,
int num[]={0x80,0xc0,0xe0,0xf0,0xf8,0xfc,0xfe,0xff,0x7f,0x3f,0x1f,0x0f,0x07,0x03,0x01,0x00};
把0x80,0xc0,0xe0,0xf0,0xf8,0xfc,0xfe,0xff,0x7f,0x3f,0x1f,0x0f,0x07,0x03,0x01,0x00的16个整数值给num一维整数数组初始化赋值

追问

我知道是数组，我想问的是为什么填那16个进制数

追答

你喜欢填十进制数也行中,十六进制方便容易输入吧,看各人爱好!