PI7Segment.cs

	void LEDDisp(){
		for (int i = 0; i < DigitOfLED; i++) {
            if (i == 3) {
                LED9 = 0;
            } else if (i == 2) {
                LED8 = 0;
            } else if (i == 1) {
                LED6 = 0;
            } else if (i == 0) {
                LED12 = 0;
            }
            LED11 = LEDBoolToInt(LEDdisp[i][0]);
            LED7 = LEDBoolToInt(LEDdisp[i][1]);
            LED4 = LEDBoolToInt(LEDdisp[i][2]);
            LED2 = LEDBoolToInt(LEDdisp[i][3]);
            LED1 = LEDBoolToInt(LEDdisp[i][4]);
            LED10 = LEDBoolToInt(LEDdisp[i][5]);
            LED5 = LEDBoolToInt(LEDdisp[i][6]);
            LED3 = LEDBoolToInt((LEDDecimalpoint == i));
            if (i == 3) {
                LED12 = 1;
            } else if (i == 2) {
                LED9 = 1;
            } else if (i == 1) {
                LED8 = 1;
            } else if (i == 0) {
                LED6 = 1;
            }
            __delay_ms(0.5);
        }
	}

PIC7Segment_AdjustableDigit.cs

#define LED12 LATCbits.LATC5
#define LED11 LATCbits.LATC4
#define LED10 LATCbits.LATC3
#define LED9 LATCbits.LATC6
#define LED8 LATCbits.LATC7
#define LED7 LATBbits.LATB7
#define LED6 LATBbits.LATB6
#define LED5 LATBbits.LATB5
#define LED4 LATBbits.LATB4
#define LED3 LATCbits.LATC2
#define LED2 LATCbits.LATC1
#define LED1 LATCbits.LATC0
#define DigitOfLED 4
#define NumberOfLEDIn1Digit 7

const bool LEDE[NumberOfLEDIn1Digit] = {true, false, false, true, true, true, true}; //E
const bool isCathodeCommon = false;
bool LEDdisp[DigitOfLED][NumberOfLEDIn1Digit];
int LEDDecimalpoint;
const bool LEDNumArray[10][NumberOfLEDIn1Digit] = {
    {true, true, true, true, true, true, false}, //0
    {false, true, true, false, false, false, false}, //1
    {true, true, false, true, true, false, true}, //2
    {true, true, true, true, false, false, true}, //3
    {false, true, true, false, false, true, true}, //4
    {true, false, true, true, false, true, true}, //5
    {true, false, true, true, true, true, true}, //6
    {true, true, true, false, false, true, false}, //7
    {true, true, true, true, true, true, true}, //8
    {true, true, true, true, false, true, true}, //9
};

float Pow(float x, float y) {//math.hを使うとメモリ消費が…
    float value = 1;
    if (y > 0) {
        for (int i = 0; i < y; i++) {
            value *= x;
        }
    } else {
        for (int i = 0; i > y; i--) {
            value /= x;
        }
    }
    return value;
}

void ChangeValue(float value) {

    int digit = 1;
    while (value > 10) {
        value /= 10;
        digit++;
    }
    if (value < 0.1) {
        digit--;
    }

    if (digit > DigitOfLED || digit < -DigitOfLED + 3) {//valueが4桁では表せない時、EEEEと表示
        for (int i = 0; i < DigitOfLED; i++) {
            for (int j = 0; j < NumberOfLEDIn1Digit; j++) {
                LEDdisp[i][j] = LEDE[j];
            }
        }
        LEDDecimalpoint = DigitOfLED;
    } else {
        int ivalue = (int) (value * Pow(10, DigitOfLED - 1)); //Cの^は累乗じゃない
        for (int i = 0; i < DigitOfLED; i++) {
            int num = ivalue % 10;
            ivalue /= 10;
            for (int j = 0; j < NumberOfLEDIn1Digit; j++) {
                LEDdisp[i][j] = LEDNumArray[num][j];
            }
        }
        if (digit <= 0) {
            LEDDecimalpoint = DigitOfLED - 1;
        } else if (digit == 4) {
            LEDDecimalpoint = DigitOfLED;
        } else {
            LEDDecimalpoint = DigitOfLED - digit;
        }
    }
}

int LEDBoolToInt(bool value) {
    value = !(value || isCathodeCommon);
    if (value == true) return 1;
    return 0;
}

PIC7Segment_UndjustableDigit.cs

#define LED12 LATCbits.LATC5
#define LED11 LATCbits.LATC4
#define LED10 LATCbits.LATC3
#define LED9 LATCbits.LATC6
#define LED8 LATCbits.LATC7
#define LED7 LATBbits.LATB7
#define LED6 LATBbits.LATB6
#define LED5 LATBbits.LATB5
#define LED4 LATBbits.LATB4
#define LED3 LATCbits.LATC2
#define LED2 LATCbits.LATC1
#define LED1 LATCbits.LATC0
#define DigitOfLED 4
#define NumberOfLEDIn1Digit 7
#define DemicalPointPos 3

const bool LEDE[NumberOfLEDIn1Digit] = {true, false, false, true, true, true, true}; //E
const bool isCathodeCommon = false;
bool LEDdisp[DigitOfLED][NumberOfLEDIn1Digit];
int LEDDecimalpoint;
const bool LEDNumArray[10][NumberOfLEDIn1Digit] = {
    {true, true, true, true, true, true, false}, //0
    {false, true, true, false, false, false, false}, //1
    {true, true, false, true, true, false, true}, //2
    {true, true, true, true, false, false, true}, //3
    {false, true, true, false, false, true, true}, //4
    {true, false, true, true, false, true, true}, //5
    {true, false, true, true, true, true, true}, //6
    {true, true, true, false, false, true, false}, //7
    {true, true, true, true, true, true, true}, //8
    {true, true, true, true, false, true, true}, //9
};

float Pow(float x, float y) {//math.hを使うとメモリ消費が…
    float value = 1;
    if (y > 0) {
        for (int i = 0; i < y; i++) {
            value *= x;
        }
    } else {
        for (int i = 0; i > y; i--) {
            value /= x;
        }
    }
    return value;
}

void ChangeValue(float value) {

    if (digit >= Pow(10, DemicalPointPos) {//valueが4桁では表せない時、EEEEと表示
        for (int i = 0; i < DigitOfLED; i++) {
            for (int j = 0; j < NumberOfLEDIn1Digit; j++) {
                LEDdisp[i][j] = LEDE[j];
            }
        }
        LEDDecimalpoint = DigitOfLED;
    } else {
        int ivalue = (int) (value * Pow(10, DigitOfLED - DemicalPointPos)); //Cの^は累乗じゃない
        for (int i = 0; i < DigitOfLED; i++) {
            int num = ivalue % 10;
            ivalue /= 10;
            for (int j = 0; j < NumberOfLEDIn1Digit; j++) {
                LEDdisp[i][j] = LEDNumArray[num][j];
            }
        }
        LEDDecimalpoint = DemicalPointPos;
    }
}

int LEDBoolToInt(bool value) {
    value = !(value || isCathodeCommon);
    if (value == true) return 1;
    return 0;
}