相互关联的打印数组和枚举C [英] printing arrays and enums in relation to each other C

问题描述

我正在尝试打印与 Numbers 数组有关的枚举 Months .我正在尝试使用该关系格式化打印功能

I am trying to print the enums Months in relation to the Numbers array. I am trying to format the print function with the relation

#include <stdio.h>

int main ()
{
   Numbers[12] = {3,4,5,1,2,7,8,9,3,4,7,8};
   enum Months {Jan, Feb, March, April, May, June, July, August, September, October, November, December};            
   for(int i = 0; i> 12; i ++){
          printf("Month: %d Number: %d", Months[i], Numbers[i]);   

    }
    return 0;
}

预期输出:

Jan:  3
Feb:  4
March: 5
April: 1
May: 2
June: 7
July: 8
August: 9
September: 3 
October: 4 
November: 7
December: 8

推荐答案

首先，必须使用数据类型定义数组.我认为它是整数.

Firstly, the array must be defined with a data type. I assume it is integer.

另一个主要问题是枚举不是字符串.它们用于为常量设置有意义的名称，例如 enum {OPTION1，OPTION2，OPTION3} ，以减少使用幻数.因此，我们需要使用字符数组来存储月份的名称.

Another major issue is that the enums are not strings. They are used to set meaningful names for constants such as enum {OPTION1, OPTION2, OPTION3} to reduce the usage of magical numbers. Thus, we need to use a character array to store the name of the months.

最后，语义问题是 i>12 在循环中–这不会让循环被执行.相反，条件应为 i<12 .

Lastly, a semantic issue is i > 12 in the loop – this won't let the loop be executed. Instead, the condition should be i < 12.

修饰的代码应如下所示:

The polished code should look like this:

#include <stdio.h>

#define MAX_LEN 32

int main() {
    int Numbers[12] = {3, 4, 5, 1, 2, 7, 8, 9, 3, 4, 7, 8};
    char Months[][MAX_LEN] = {"Jan",       "Feb",     "March",    "April",
                              "May",       "June",    "July",     "August",
                              "September", "October", "November", "December"};

    for (int i = 0; i < 12; i++)
        printf("%s: %d\n", Months[i], Numbers[i]);

    return 0;
}

这样您将获得正确的输出:

So you get the correct output:

rohanbari@genesis:~/stack$ ./a.out
Jan: 3
Feb: 4
March: 5
April: 1
May: 2
June: 7
July: 8
August: 9
September: 3
October: 4
November: 7
December: 8

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