字符串数组排序

#include <iostream>#include <stdio.h>#include <stdlib.h>#include <string.h>#define M 12#define N 20using namespace std;int cmp(const void *a, const void *b){    return *(char*)a - *(char*)b;}int main(){    char months[M][N]={"January","February","March","April","May","June","July","August","September","October","November","December"};qsort(months,M,sizeof(char)*N,cmp);for(int i=0;i<M;i++)    {        cout<<months[i]<<endl;    }    return 0;}

结果：

AprilAugustDecemberFebruaryJulyJuneJanuaryMarchMayNovemberOctoberSeptember