基于stc15f2k60s2，设计完整具体程序，实现当按下ADC分压键盘时，将相应的键号（01-16）通过两片具有SPI接口的74HC595芯片驱动最右端两个7段数码管显示，其余6个数码管关闭。

好的，这是一个需要嵌入式系统和单片机编程知识的问题。我可以提供一个基本的思路和代码框架，但需要您自行完成具体实现和调试。

1.硬件准备

- STC15F2K60S2单片机
- ADC分压模块
- 键盘模块
- 74HC595芯片（2片）
- 7段数码管（8个）
- SPI接口
- 电阻、电容等元件

2.程序设计流程

- 初始化ADC模块、键盘模块和SPI模块
- 初始化74HC595芯片，将其余6个数码管关闭
- 进入循环，等待按键按下
- 检测按键并获取键号
- 将键号转换成相应的数字显示在两个数码管上

3.代码框架

#include <STC15F2K60S2.h>

#define ADC_PIN P1_0
#define KEYBOARD_PIN P2
#define SPI_CS P1_4
#define SPI_SCK P1_5
#define SPI_MOSI P1_6
#define NUM_OF_DISPLAY 2

unsigned char digit[10] = {0x3F, 0x06, 0x5B, 0x4F, 0x66,
                            0x6D, 0x7D, 0x07, 0x7F, 0x6F};

void init_adc(void) {
    ADC_CONTR = 0x80; // 启用ADC模块
    P1ASF = 0x01; // 将P1.0设置为ADC输入
}

unsigned int read_adc(void) {
    ADC_RES = 0;
    ADC_RESL = 0;
    ADC_CONTR = ADC_POWER | ADC_SPEEDLL | ADC_START | ADC_CH0;
    while (!(ADC_CONTR & ADC_FLAG));
    ADC_CONTR &= ~ADC_FLAG;
    return (ADC_RES << 2) | ADC_RESL;
}

void init_keyboard(void) {
    KEYBOARD_PIN = 0xF0; // 将P2.0-P2.3设置为输出，P2.4-P2.7设置为输入
}

unsigned char scan_key(void) {
    unsigned char key = 0;
    KEYBOARD_PIN = 0x0F; // 先将P2.0-P2.3输出低电平
    if (KEYBOARD_PIN != 0x0F) { // 如果有按键按下
        delay_ms(10); // 等待10ms，防止抖动
        if (KEYBOARD_PIN != 0x0F) { // 再次检测按键状态
            switch (KEYBOARD_PIN) {
                case 0x07: key = 1; break;
                case 0x0B: key = 2; break;
                case 0x0D: key = 3; break;
                case 0x0E: key = 4; break;
            }
            while (KEYBOARD_PIN != 0x0F); // 等待按键释放
        }
    }
    return key;
}

void init_spi(void) {
    SPI_CS = 1;
    SPI_SCK = 0;
    SPI_MOSI = 0;
}

void spi_write(unsigned char data) {
    unsigned char i;
    SPI_CS = 0;
    for (i = 0; i < 8; i++) {
        SPI_SCK = 0;
        SPI_MOSI = data & 0x80;
        SPI_SCK = 1;
        data <<= 1;
    }
    SPI_CS = 1;
}

void init_74hc595(void) {
    spi_write(0x00); // 将两片74HC595芯片的输出全部关闭
}

void display_num(unsigned char num) {
    unsigned char i;
    for (i = 0; i < NUM_OF_DISPLAY; i++) {
        spi_write(digit[num % 10]);
        num /= 10;
    }
}

void main(void) {
    unsigned char key;

    init_adc();
    init_keyboard();
    init_spi();
    init_74hc595();

    while (1) {
        key = scan_key();
        if (key) {
            unsigned int adc_value = read_adc();
            unsigned char num = adc_value % 100;
            display_num(num);
        }
    }
}

4.具体实现

由于本人无法获取您使用的具体硬件和库函数，以下是一个基于STC15F2K60S2单片机和Keil C51编译器的简单实现，仅供参考。

#include <STC15F2K60S2.h>

#define ADC_PIN P1_0
#define KEYBOARD_PIN P2
#define SPI_CS P1_4
#define SPI_SCK P1_5
#define SPI_MOSI P1_6
#define NUM_OF_DISPLAY 2

unsigned char digit[10] = {0x3F, 0x06, 0x5B, 0x4F, 0x66,
                            0x6D, 0x7D, 0x07, 0x7F, 0x6F};

void delay_ms(unsigned int ms) {
    unsigned int i, j;
    for (i = 0; i < ms; i++) {
        for (j = 0; j < 125; j++);
    }
}

void init_adc(void) {
    ADC_CONTR = 0x80; // 启用ADC模块
    P1ASF = 0x01; // 将P1.0设置为ADC输入
}

unsigned int read_adc(void) {
    ADC_RES = 0;
    ADC_RESL = 0;
    ADC_CONTR = ADC_POWER | ADC_SPEEDLL | ADC_START | ADC_CH0;
    while (!(ADC_CONTR & ADC_FLAG));
    ADC_CONTR &= ~ADC_FLAG;
    return (ADC_RES << 2) | ADC_RESL;
}

void init_keyboard(void) {
    KEYBOARD_PIN = 0xF0; // 将P2.0-P2.3设置为输出，P2.4-P2.7设置为输入
}

unsigned char scan_key(void) {
    unsigned char key = 0;
    KEYBOARD_PIN = 0x0F; // 先将P2.0-P2.3输出低电平
    if (KEYBOARD_PIN != 0x0F) { // 如果有按键按下
        delay_ms(10); // 等待10ms，防止抖动
        if (KEYBOARD_PIN != 0x0F) { // 再次检测按键状态
            switch (KEYBOARD_PIN) {
                case 0x07: key = 1; break;
                case 0x0B: key = 2; break;
                case 0x0D: key = 3; break;
                case 0x0E: key = 4; break;
            }
            while (KEYBOARD_PIN != 0x0F); // 等待按键释放
        }
    }
    return key;
}

void init_spi(void) {
    SPI_CS = 1;
    SPI_SCK = 0;
    SPI_MOSI = 0;
}

void spi_write(unsigned char data) {
    unsigned char i;
    SPI_CS = 0;
    for (i = 0; i < 8; i++) {
        SPI_SCK = 0;
        SPI_MOSI = data & 0x80;
        SPI_SCK = 1;
        data <<= 1;
    }
    SPI_CS = 1;
}

void init_74hc595(void) {
    spi_write(0x00); // 将两片74HC595芯片的输出全部关闭
}

void display_num(unsigned char num) {
    unsigned char i;
    for (i = 0; i < NUM_OF_DISPLAY; i++) {
        spi_write(digit[num % 10]);
        num /= 10;
    }
}

void main(void) {
    unsigned char key;

    init_adc();
    init_keyboard();
    init_spi();
    init_74hc595();

    while (1) {
        key = scan_key();
        if (key) {
            unsigned int adc_value = read_adc();
            unsigned char num = adc_value % 100;
            display_num(num);
        }
    }
}

以上是一个简单的基于STC15F2K60S2单片机的程序实现。请注意，该程序未经过严格的测试和调试，仅供参考。如果您遇到任何问题，请自行检查硬件连接和库函数使用。