C语言：简单的字符截取与比较

#include <stdio.h>
struct data {char name[7];int age;} ab[5]={"张三",10,"李四",11,"张五",12,"李六",13,"陈七",14}; 
//编程将数组中所有姓张的年龄增加1,姓李的增加2,然后输出各个人的姓名与年龄 
//中文字符串的 
main()
{
    char z[3]="张",l[3]="李";
    int i;
    for(i=0;i<5;i++)
    {
        if(ab[i].name[0]==z[0]&&ab[i].name[1]==z[1])
        ab[i].age++;
        else if(ab[i].name[0]==l[0]&&ab[i].name[1]==l[1])
        ab[i].age+=2;
        printf("%s,%d\n",ab[i].name,ab[i].age);
    } 
    getchar();
 }