我需要你写一个使用c语言的计算器，功能应该有菜单，可以实现二进制、十进制的加减乘除，在运算结束后可以选择继续或者是返回菜单，可以进行简单错误判断，如除以0判断等

好的，我可以给你写一个简单的计算器程序。这个程序可以进行二进制和十进制的加减乘除运算，同时还具有错误判断及返回菜单的功能。

首先，我们需要编写一个菜单函数，用于展示用户可以进行的操作：

void show_menu() {
    printf("\n");
    printf("1. Binary addition\n");
    printf("2. Binary subtraction\n");
    printf("3. Binary multiplication\n");
    printf("4. Binary division\n");
    printf("5. Decimal addition\n");
    printf("6. Decimal subtraction\n");
    printf("7. Decimal multiplication\n");
    printf("8. Decimal division\n");
    printf("9. Exit\n");
    printf("\n");
}

接下来编写二进制加法的函数：

void binary_addition() {
    char binary1[100], binary2[100];
    int decimal1 = 0, decimal2 = 0, sum = 0;

    printf("Enter first binary number: ");
    scanf("%s", binary1);

    printf("Enter second binary number: ");
    scanf("%s", binary2);

    decimal1 = binary_to_decimal(binary1);
    decimal2 = binary_to_decimal(binary2);

    sum = decimal1 + decimal2;

    printf("Sum of the two binary numbers is: %d\n", decimal_to_binary(sum));
}

这个函数首先要求用户输入两个二进制数，然后将它们转换为十进制数，计算它们的和，并将和转换为二进制数进行输出。在这里，我们需要编写两个辅助函数 `binary_to_decimal` 和 `decimal_to_binary`。下面是这两个函数的代码：

int binary_to_decimal(char binary[]) {
    int decimal = 0, base = 1, i = 0;

    for (i = strlen(binary) - 1; i >= 0; i--) {
        if (binary[i] == '1') {
            decimal += base;
        }
        base *= 2;
    }

    return decimal;
}

int decimal_to_binary(int decimal) {
    int binary = 0, base = 1;

    while (decimal > 0) {
        binary += (decimal % 2) * base;
        decimal /= 2;
        base *= 10;
    }

    return binary;
}

接下来依次编写二进制减法、乘法和除法的函数：

void binary_subtraction() {
    char binary1[100], binary2[100];
    int decimal1 = 0, decimal2 = 0, diff = 0;

    printf("Enter first binary number: ");
    scanf("%s", binary1);

    printf("Enter second binary number: ");
    scanf("%s", binary2);

    decimal1 = binary_to_decimal(binary1);
    decimal2 = binary_to_decimal(binary2);

    diff = decimal1 - decimal2;

    printf("Difference of the two binary numbers is: %d\n", decimal_to_binary(diff));
}

void binary_multiplication() {
    char binary1[100], binary2[100];
    int decimal1 = 0, decimal2 = 0, product = 0;

    printf("Enter first binary number: ");
    scanf("%s", binary1);

    printf("Enter second binary number: ");
    scanf("%s", binary2);

    decimal1 = binary_to_decimal(binary1);
    decimal2 = binary_to_decimal(binary2);

    product = decimal1 * decimal2;

    printf("Product of the two binary numbers is: %d\n", decimal_to_binary(product));
}

void binary_division() {
    char binary1[100], binary2[100];
    int decimal1 = 0, decimal2 = 0, quotient = 0;

    printf("Enter first binary number: ");
    scanf("%s", binary1);

    printf("Enter second binary number: ");
    scanf("%s", binary2);

    decimal1 = binary_to_decimal(binary1);
    decimal2 = binary_to_decimal(binary2);

    if (decimal2 == 0) {
        printf("Error: Division by zero\n");
        return;
    }

    quotient = decimal1 / decimal2;

    printf("Quotient of the two binary numbers is: %d\n", decimal_to_binary(quotient));
}

接下来编写十进制加减乘除的函数，与二进制的运算类似：

void decimal_addition() {
    float num1, num2;

    printf("Enter first number: ");
    scanf("%f", &num1);

    printf("Enter second number: ");
    scanf("%f", &num2);

    printf("Sum of the two numbers is: %.2f\n", num1 + num2);
}

void decimal_subtraction() {
    float num1, num2;

    printf("Enter first number: ");
    scanf("%f", &num1);

    printf("Enter second number: ");
    scanf("%f", &num2);

    printf("Difference of the two numbers is: %.2f\n", num1 - num2);
}

void decimal_multiplication() {
    float num1, num2;

    printf("Enter first number: ");
    scanf("%f", &num1);

    printf("Enter second number: ");
    scanf("%f", &num2);

    printf("Product of the two numbers is: %.2f\n", num1 * num2);
}

void decimal_division() {
    float num1, num2;

    printf("Enter first number: ");
    scanf("%f", &num1);

    printf("Enter second number: ");
    scanf("%f", &num2);

    if (num2 == 0) {
        printf("Error: Division by zero\n");
        return;
    }

    printf("Quotient of the two numbers is: %.2f\n", num1 / num2);
}

最后，我们把所有的函数整合起来，加上菜单及错误判断的代码：

#include <stdio.h>
#include <string.h>

int binary_to_decimal(char binary[]) {
    int decimal = 0, base = 1, i = 0;

    for (i = strlen(binary) - 1; i >= 0; i--) {
        if (binary[i] == '1') {
            decimal += base;
        }
        base *= 2;
    }

    return decimal;
}

int decimal_to_binary(int decimal) {
    int binary = 0, base = 1;

    while (decimal > 0) {
        binary += (decimal % 2) * base;
        decimal /= 2;
        base *= 10;
    }

    return binary;
}

void show_menu() {
    printf("\n");
    printf("1. Binary addition\n");
    printf("2. Binary subtraction\n");
    printf("3. Binary multiplication\n");
    printf("4. Binary division\n");
    printf("5. Decimal addition\n");
    printf("6. Decimal subtraction\n");
    printf("7. Decimal multiplication\n");
    printf("8. Decimal division\n");
    printf("9. Exit\n");
    printf("\n");
}

void binary_addition() {
    char binary1[100], binary2[100];
    int decimal1 = 0, decimal2 = 0, sum = 0;

    printf("Enter first binary number: ");
    scanf("%s", binary1);

    printf("Enter second binary number: ");
    scanf("%s", binary2);

    decimal1 = binary_to_decimal(binary1);
    decimal2 = binary_to_decimal(binary2);

    sum = decimal1 + decimal2;

    printf("Sum of the two binary numbers is: %d\n", decimal_to_binary(sum));
}

void binary_subtraction() {
    char binary1[100], binary2[100];
    int decimal1 = 0, decimal2 = 0, diff = 0;

    printf("Enter first binary number: ");
    scanf("%s", binary1);

    printf("Enter second binary number: ");
    scanf("%s", binary2);

    decimal1 = binary_to_decimal(binary1);
    decimal2 = binary_to_decimal(binary2);

    diff = decimal1 - decimal2;

    printf("Difference of the two binary numbers is: %d\n", decimal_to_binary(diff));
}

void binary_multiplication() {
    char binary1[100], binary2[100];
    int decimal1 = 0, decimal2 = 0, product = 0;

    printf("Enter first binary number: ");
    scanf("%s", binary1);

    printf("Enter second binary number: ");
    scanf("%s", binary2);

    decimal1 = binary_to_decimal(binary1);
    decimal2 = binary_to_decimal(binary2);

    product = decimal1 * decimal2;

    printf("Product of the two binary numbers is: %d\n", decimal_to_binary(product));
}

void binary_division() {
    char binary1[100], binary2[100];
    int decimal1 = 0, decimal2 = 0, quotient = 0;

    printf("Enter first binary number: ");
    scanf("%s", binary1);

    printf("Enter second binary number: ");
    scanf("%s", binary2);

    decimal1 = binary_to_decimal(binary1);
    decimal2 = binary_to_decimal(binary2);

    if (decimal2 == 0) {
        printf("Error: Division by zero\n");
        return;
    }

    quotient = decimal1 / decimal2;

    printf("Quotient of the two binary numbers is: %d\n", decimal_to_binary(quotient));
}

void decimal_addition() {
    float num1, num2;

    printf("Enter first number: ");
    scanf("%f", &num1);

    printf("Enter second number: ");
    scanf("%f", &num2);

    printf("Sum of the two numbers is: %.2f\n", num1 + num2);
}

void decimal_subtraction() {
    float num1, num2;

    printf("Enter first number: ");
    scanf("%f", &num1);

    printf("Enter second number: ");
    scanf("%f", &num2);

    printf("Difference of the two numbers is: %.2f\n", num1 - num2);
}

void decimal_multiplication() {
    float num1, num2;

    printf("Enter first number: ");
    scanf("%f", &num1);

    printf("Enter second number: ");
    scanf("%f", &num2);

    printf("Product of the two numbers is: %.2f\n", num1 * num2);
}

void decimal_division() {
    float num1, num2;

    printf("Enter first number: ");
    scanf("%f", &num1);

    printf("Enter second number: ");
    scanf("%f", &num2);

    if (num2 == 0) {
        printf("Error: Division by zero\n");
        return;
    }

    printf("Quotient of the two numbers is: %.2f\n", num1 / num2);
}

int main() {
    int choice = 0;

    while (1) {
        show_menu();
        printf("Enter your choice: ");
        scanf("%d", &choice);

        switch (choice) {
            case 1:
                binary_addition();
                break;
            case 2:
                binary_subtraction();
                break;
            case 3:
                binary_multiplication();
                break;
            case 4:
                binary_division();
                break;
            case 5:
                decimal_addition();
                break;
            case 6:
                decimal_subtraction();
                break;
            case 7:
                decimal_multiplication();
                break;
            case 8:
                decimal_division();
                break;
            case 9:
                return 0;
            default:
                printf("Invalid choice. Please try again.\n");
                break;
        }
    }

    return 0;
}

此时，你可以编译并运行此程序，以体验完整的计算器功能。