用vue搭建一个登录页面

以下是硬件设计和软件编程实现的示例代码：

硬件设计：

// P2口接矩阵键盘
sbit COL1 = P2^0;
sbit COL2 = P2^1;
sbit COL3 = P2^2;
sbit ROW1 = P2^3;
sbit ROW2 = P2^4;
sbit ROW3 = P2^5;
sbit ROW4 = P2^6;

// P1口和P3口接两个数码管
sbit DIG1 = P1^0;
sbit DIG2 = P1^1;
sbit A = P1^2;
sbit B = P1^3;
sbit C = P1^4;
sbit D = P1^5;
sbit E = P1^6;
sbit F = P1^7;

sbit DIG3 = P3^0;
sbit DIG4 = P3^1;
sbit G = P3^2;
sbit DP = P3^3;
sbit D1 = P3^4;
sbit D2 = P3^5;
sbit D3 = P3^6;
sbit D4 = P3^7;

软件编程实现：

#include <reg52.h>

// 定义数码管显示的字符
unsigned char code LEDChar[] = {
    0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7F, 0x6F, 0x00, 0x40
};

// 定义按键值
unsigned char code KeyVal[] = {
    1, 2, 3, 0x0A,
    4, 5, 6, 0x0B,
    7, 8, 9, 0x0C,
    0, 0x0F, 0, 0x0E
};

// 定义变量
unsigned char keyValue = 0;   // 按键值
unsigned char digit1 = 0;     // 数码管1显示的数字
unsigned char digit2 = 0;     // 数码管2显示的数字
unsigned char isLooping = 0;  // 是否在循环显示状态

// 延时函数
void delay(unsigned int time) {
    while (time--);
}

// 扫描矩阵键盘，返回按下的键值
unsigned char scanKey() {
    unsigned char i, j;
    unsigned char key = 0;
    COL1 = 0;
    COL2 = 1;
    COL3 = 1;
    if (ROW1 == 0) {
        delay(1000);    // 延时去抖
        if (ROW1 == 0) {
            key = KeyVal[0];
        }
    } else if (ROW2 == 0) {
        delay(1000);
        if (ROW2 == 0) {
            key = KeyVal[1];
        }
    } else if (ROW3 == 0) {
        delay(1000);
        if (ROW3 == 0) {
            key = KeyVal[2];
        }
    } else if (ROW4 == 0) {
        delay(1000);
        if (ROW4 == 0) {
            key = KeyVal[3];
        }
    }
    COL1 = 1;
    COL2 = 0;
    COL3 = 1;
    if (ROW1 == 0) {
        delay(1000);
        if (ROW1 == 0) {
            key = KeyVal[4];
        }
    } else if (ROW2 == 0) {
        delay(1000);
        if (ROW2 == 0) {
            key = KeyVal[5];
        }
    } else if (ROW3 == 0) {
        delay(1000);
        if (ROW3 == 0) {
            key = KeyVal[6];
        }
    } else if (ROW4 == 0) {
        delay(1000);
        if (ROW4 == 0) {
            key = KeyVal[7];
        }
    }
    COL1 = 1;
    COL2 = 1;
    COL3 = 0;
    if (ROW1 == 0) {
        delay(1000);
        if (ROW1 == 0) {
            key = KeyVal[8];
        }
    } else if (ROW2 == 0) {
        delay(1000);
        if (ROW2 == 0) {
            key = KeyVal[9];
        }
    } else if (ROW3 == 0) {
        delay(1000);
        if (ROW3 == 0) {
            key = KeyVal[10];
        }
    } else if (ROW4 == 0) {
        delay(1000);
        if (ROW4 == 0) {
            key = KeyVal[11];
        }
    }
    COL1 = 1;
    COL2 = 1;
    COL3 = 1;
    return key;
}

// 数码管动态显示
void display(unsigned char digit, unsigned char value) {
    // 显示位选
    switch (digit) {
        case 1:
            DIG1 = 0;
            DIG2 = 1;
            break;
        case 2:
            DIG1 = 1;
            DIG2 = 0;
            break;
        case 3:
            DIG3 = 0;
            DIG4 = 1;
            break;
        case 4:
            DIG3 = 1;
            DIG4 = 0;
            break;
    }
    // 显示数码
    A = LEDChar[value] & 0x01;
    B = LEDChar[value] & 0x02;
    C = LEDChar[value] & 0x04;
    D = LEDChar[value] & 0x08;
    E = LEDChar[value] & 0x10;
    F = LEDChar[value] & 0x20;
    G = LEDChar[value] & 0x40;
}

// 主函数
void main() {
    while (1) {
        if (!isLooping) {
            // 非循环状态
            keyValue = scanKey();
            if (keyValue) {
                // 有按键按下
                if (keyValue == 0x0E) {
                    // 按下两个9，进入循环状态
                    digit1 = 0;
                    digit2 = 1;
                    isLooping = 1;
                } else {
                    // 显示按下的键值
                    digit1 = keyValue / 10;
                    digit2 = keyValue % 10;
                }
            }
        } else {
            // 循环状态
            digit1++;
            digit2++;
            if (digit1 == 2 && digit2 == 0) {
                digit1 = 0;
                digit2 = 1;
            }
            if (digit1 == 1 && digit2 == 1) {
                // 按下两次1，退出循环状态
                isLooping = 0;
            }
        }
        display(1, digit1);
        display(2, digit2);
        delay(1000);
    }
}