给我一份STM32驱动74HC164驱动四位数码管的C语言程序。

好的，以下是一份基于STM32驱动74HC164驱动四位数码管的C语言程序，供您参考：

#include "stm32f10x.h"

#define CLK_PIN GPIO_Pin_0
#define CLK_PORT GPIOB
#define DATA_PIN GPIO_Pin_1
#define DATA_PORT GPIOB

void HC164_WriteByte(uint8_t data)
{
    uint8_t i;
    for(i=0;i<8;i++)
    {
        GPIO_ResetBits(CLK_PORT, CLK_PIN);
        if(data&0x80)
            GPIO_SetBits(DATA_PORT, DATA_PIN);
        else
            GPIO_ResetBits(DATA_PORT, DATA_PIN);
        data <<= 1;
        GPIO_SetBits(CLK_PORT, CLK_PIN);
    }
}

void Display_Digit(uint8_t digit, uint8_t data)
{
    switch(digit)
    {
        case 0:
            HC164_WriteByte(0x3f);
            break;
        case 1:
            HC164_WriteByte(0x06);
            break;
        case 2:
            HC164_WriteByte(0x5b);
            break;
        case 3:
            HC164_WriteByte(0x4f);
            break;
        case 4:
            HC164_WriteByte(0x66);
            break;
        case 5:
            HC164_WriteByte(0x6d);
            break;
        case 6:
            HC164_WriteByte(0x7d);
            break;
        case 7:
            HC164_WriteByte(0x07);
            break;
        case 8:
            HC164_WriteByte(0x7f);
            break;
        case 9:
            HC164_WriteByte(0x6f);
            break;
        default:
            HC164_WriteByte(0x00);
            break;
    }
    HC164_WriteByte(data);
}

int main(void)
{
    uint8_t data[4] = {0x01, 0x02, 0x04, 0x08};
    uint8_t i, j;
    GPIO_InitTypeDef GPIO_InitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);

    GPIO_InitStructure.GPIO_Pin = CLK_PIN | DATA_PIN;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOB, &GPIO_InitStructure);

    while(1)
    {
        for(i=0;i<4;i++)
        {
            for(j=0;j<4;j++)
            {
                Display_Digit(j, data[j]);
            }
            data[i] <<= 1;
            if(data[i] == 0)
                data[i] = 1;
            delay_ms(1);
        }
    }
}

其中，`HC164_WriteByte()`函数用于写入一个字节的数据到74HC164芯片；`Display_Digit()`函数用于显示一个数字到数码管上；`main()`函数中的循环用于不断地在四位数码管上显示数字。请注意，该程序中的`delay_ms()`函数需要根据实际情况进行实现。