枚举类型和二维数结合输出一定格式的1~12月份的英文名称

#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
enum mouth{Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sept,Oct,Nov,Dec};
enum mouth m;
char mouth[12][20]={"Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sept","Oct","Nov","Dec"};
for(m=(enum mouth)(Jan+1);m<=(enum mouth)(Dec+1);m=(enum mouth)(m+1))
//m的值需要用强制转换类型符进行类型转换，不然会出现类型匹配错误，虽然枚举元素代表整型值
//但是是枚举元素m是枚举型的数值，所以进行整数运算或者赋值时必须进行类型转换为枚举元素
{
cout<<setw(4)<<m<<"月："<<mouth[m-1];
if(m%3==0)
cout<<endl;}
return 0;

}