C语言：月份缩写

题目描述

从一月份到十二月的英文全称依次是：“January”,“February”,“March”,“April”,“May”,“June”,“July”,“August”,“September”,“October”,“November”,“December”
对应的缩写依次是：“Jan.”,“Feb.”,“Mar.”,“Apr.”,“May.”,“Jun.”,“Jul.”,“Aug.”,“Sep.”,“Oct.”,“Nov.”,“Dec.”。注意首字母大写，后面有个“.”
现在用户来输入一个月份的英文，请程序输出对应的英文缩写，无论用户的单词是大写还是小写，均应给出正确的英文缩写。如果输入的英文单词错误，请输出“Error”

例如，用户输入“JULY”，程序应输出“Jul.”
若用户输入的是“augest”，程序应输出“Error”

输入格式

一个英文单词，表示月份

输出格式

对应的月份缩写

分析

将字母全部转换为小写+字符串相等判断

字母全部转换为小写函数

void change(char s[10])
{int i;for(i=0;i<10;i++){if(s[i]>='A' && s[i]<='Z'){s[i]+=32;}}
}

完整代码

#include <stdio.h>
#include <math.h>
#include <string.h>
void change(char s[10])
{int i;for(i=0;i<10;i++){if(s[i]>='A' && s[i]<='Z'){s[i]+=32;}}
}int main()
{char mon[12][10]={"january","february","march","april","may","june","july","august","september","october","november","december"};char suo[12][10]={"Jan.","Feb.","Mar.","Apr.","May,","Jun.","Jul.","Aug.","Sep.","Oct.","Nov.","Dec."};char s[10];gets(s);change(s);int i;int c=0;int flag=0;;for(i=0;i<12;i++){c=strcmp(s,mon[i]); if(c==0){flag=1;printf("%s",suo[i]);}}if(flag==0){printf("Error");}return 0;
}