C语言利用栈实现十进制转换二进制、八进制、十六进制的代码

以下是C语言利用栈实现十进制转换二进制、八进制、十六进制的代码：

#include <stdio.h>
#include <stdlib.h>

typedef struct {
    int top;
    int capacity;
    char* array;
} Stack;

Stack* createStack(int capacity) {
    Stack* stack = (Stack*)malloc(sizeof(Stack));
    stack->top = -1;
    stack->capacity = capacity;
    stack->array = (char*)malloc(capacity * sizeof(char));
    return stack;
}

int isFull(Stack* stack) {
    return stack->top == stack->capacity - 1;
}

int isEmpty(Stack* stack) {
    return stack->top == -1;
}

void push(Stack* stack, char item) {
    if (isFull(stack)) {
        printf("Stack is full\n");
    }
    else {
        stack->array[++stack->top] = item;
    }
}

char pop(Stack* stack) {
    if (isEmpty(stack)) {
        printf("Stack is empty\n");
        return 0;
    }
    else {
        return stack->array[stack->top--];
    }
}

char peek(Stack* stack) {
    if (isEmpty(stack)) {
        printf("Stack is empty\n");
        return 0;
    }
    else {
        return stack->array[stack->top];
    }
}

void convertDecimalToBinary(int decimal) {
    Stack* stack = createStack(100);
    while (decimal > 0) {
        int rem = decimal % 2;
        push(stack, rem + '0');
        decimal /= 2;
    }
    printf("Binary: ");
    while (!isEmpty(stack)) {
        printf("%c", pop(stack));
    }
    printf("\n");
    free(stack->array);
    free(stack);
}

void convertDecimalToOctal(int decimal) {
    Stack* stack = createStack(100);
    while (decimal > 0) {
        int rem = decimal % 8;
        push(stack, rem + '0');
        decimal /= 8;
    }
    printf("Octal: ");
    while (!isEmpty(stack)) {
        printf("%c", pop(stack));
    }
    printf("\n");
    free(stack->array);
    free(stack);
}

void convertDecimalToHexadecimal(int decimal) {
    Stack* stack = createStack(100);
    while (decimal > 0) {
        int rem = decimal % 16;
        if (rem < 10) {
            push(stack, rem + '0');
        }
        else {
            push(stack, rem - 10 + 'A');
        }
        decimal /= 16;
    }
    printf("Hexadecimal: ");
    while (!isEmpty(stack)) {
        printf("%c", pop(stack));
    }
    printf("\n");
    free(stack->array);
    free(stack);
}

int main() {
    int decimal;
    printf("Enter a decimal number: ");
    scanf("%d", &decimal);
    convertDecimalToBinary(decimal);
    convertDecimalToOctal(decimal);
    convertDecimalToHexadecimal(decimal);
    return 0;
}

在这个程序中，我们使用了一个`Stack`结构体，用于存储转换后的数字。`createStack`函数用于创建一个栈，`isFull`函数用于检查栈是否已满，`isEmpty`函数用于检查栈是否为空，`push`函数用于向栈中添加元素，`pop`函数用于从栈中弹出元素，`peek`函数用于查看栈顶元素。`convertDecimalToBinary`函数、`convertDecimalToOctal`函数和`convertDecimalToHexadecimal`函数分别用于将十进制数字转换为二进制、八进制和十六进制数字，并将结果输出到控制台上。

在`main`函数中，我们首先获取用户输入的十进制数字，然后调用上述三个函数分别将其转换为二进制、八进制和十六进制数字。