#include<stdio.h>
int main()
{     int a[4][4]={78,90,87,92,
                   88,91,89,78,
                   84,76,83,75,
                   88,90,71,83};
      char name[4][20]={"wanglei",
                        "lihong",
                        "zhangli",
                        "liuming"};
      int*p1=a;
      char *p3;
      char(*p4)[4];
      p1=a;     
      p3=name;     
      p4=name;

    int (*p1)[4]=a;
    char (*p3)[20];
    char(*p4)[20];
    p1=a;
    p3=name;
    p4=name;