实验4 输入四个人的年龄和姓名，排序后，按年龄，从小到大输出人员年龄及其姓名

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
main()
{      
    char s[255];      
    char name[][255]={"aaa","bbb","ccc","ddd"};      
    int i,j,t,age[50]={30,23,15,32};      
    for(i=0;i<3;i++)          
        for(j=i+1;j<4;j++)              
            if(age[i]>age[j])              
            {                      
                t=age[i];                      
                age[i]=age[j];                      
                age[j]=t;                      
                strcpy(s,name[i]);                      
                strcpy(name[i],name[j]);                      
                strcpy(name[j],s);
            }
            printf("按年龄从小到大排序为:
");      
            for(i=0;i<4;i++)            
                printf("%s %d
",name[i],age[i]);      
            system("PAUSE");     
}