#include <stdio.h> #define MAXSIZE 100 char* get_english(int n); int main() { int n = 0; printf("请输入一个非负整数："); scanf("%d", &n); char* str = get_english(n); printf("该整数的英文描述为：%s", str); return 0; } char* get_english(int n) { char* num1[MAXSIZE] = {...-DPDK中文网

问题出在对于字符串数组的定义和赋值上。在原代码中，使用了指针数组来存储字符串，但是并没有为每个字符串分配内存空间。因此，在运行时会导致未定义的行为。

以下是修复后的代码：

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

#define MAXSIZE 100

char* get_english(int n);

int main()
{
    int n = 0;
    printf("请输入一个非负整数：");
    scanf("%d", &n);
    char* str = get_english(n);
    printf("该整数的英文描述为：%s\n", str);
    free(str); // 释放内存
    return 0;
}

char* get_english(int n)
{
    char* num1[MAXSIZE] = {" ", "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine"};  
    char* num2[MAXSIZE] = {"Ten", "Eleven", "Twelve", "Thirteen", "Fourteen", "Fifteen", "Sixteen",
                            "Seventeen", "Eighteen","Nineteen"};
    char* num3[MAXSIZE] = {"Ten","Twenty","Thirty","Forty","Fifty","Sixty","Seventy","Eighty","Ninety"};

    int thousands = n / 1000; 
    int hundreds = (n % 1000) / 100;
    int tens = (n % 100) / 10;
    int ones = n % 10; 

    static char str[MAXSIZE] = {0}; 
    int index = 0;

    if (n == 0)
    {
        return "Zero";
    }

    if (thousands != 0)
    {
        index += sprintf(str, "%s Thousand ", num1[thousands]);
    }
    
    if (hundreds != 0)
    {
        index += sprintf(str + index, "%s Hundred ", num1[hundreds]);
    }
    
    if (tens == 1)
    {
        index += sprintf(str + index, "%s ", num2[ones]);
    }
    else
    {
        if (tens != 0)
        {
            index += sprintf(str + index, "%s ", num3[tens - 1]);
        }
        
        if (ones != 0)
        {
            index += sprintf(str + index, "%s ", num1[ones]);
        }
        
    }

    str[index] = '\0';
  
    return strdup(str); // 使用strdup分配并复制字符串，需要在使用后手动释放内存
}

修复后的代码使用strdup()函数来为返回的字符串分配内存，并通过free()函数在主函数中释放。此外，在处理十位数和个位数时也做了相应修改。

内容由零声教学AI助手提供，问题来源于学员提问