C and pointer learning notes-3. array and pointer

Data name indicates the first address

Pointer to array

#include 
  
   extern void iterate(int *p);void main(){int a[]={1,2,3,4,5};iterate(a);}void iterate(int *p){int i;for(i=0;i<5;i++){printf("%d",*p++);}}
  

Pointer to a one-dimensional array

Int (* p) [3]

#include 
  
   void iterate(int (*p)[3]);void main(){int a[3][3]={{11,12,13},{14,15,16},{17,18,19}};iterate(a);}void iterate(int (*p)[3]){int i;int j;for(i=0;i<3;i++){for(j=0;j<3;j++){printf("%d\t",*(*(p+i)+j));}printf("\n");}}
  

Pointer Array

Char * p [3]

#include 
  
   void main(){char *strs[3] ;strs[0]="zhanhua";strs[1]="linin";strs[2]="wanwu";int i ;for(i=0;i<3;i++){printf("%s\t",*(strs+i));}}
  

Pointer

Char ** str

#include 
  
   void main(){char *strs[3] ;strs[0]="zhanhua";strs[1]="linin";strs[2]="wanwu";char **ps;ps=strs;int i ;for(i=0;i<3;i++){printf("%s\t",*(ps+i));}}