#include<stdio.h>  
double copy_arr(double *,double *,int n);  
double copy_ptr(double *,double *,int n);  
int main(void)  
{  
    double source[2][5]={{1.2,3.2,2.2,4.2,5.2},{2.2,4.2,12.2,4.2,1.2}};  
    double target1[2][5];  
    double target2[2][5];  
    copy_arr(source,target1,10);  
    printf("\n");  
    copy_ptr(source,target2,10);  
      
}  
double copy_arr(double *source,double *target1,int n)  
{  
    int i,total=0;  
    for(i=0;i<n;i++)  
    {                           //这里为什么会显示正确的结果，明明是赋给target1[0]-target1[9],为什么结果会和target2[0][0]-target2[1][4]的值一样
    target1[i]=source[i];  
    printf("%5.1f",target1[i]);  
    }  
}  
double copy_ptr(double *source,double *target2,int n)  
{  
    int i,total=0;  
    for(i=0;i<n;i++)  
    {  
        *(target2+i)=*(source+i);  
        printf("%5.1f",*(target2+i));  
      
         
    }  
}