10 2019 档案

摘要：#include <stdio.h>void copy_ptr(double target[][4],double source[][4],int n){ double (*p1)[4]=target,(*p2)[4]=source; for(int i=0;i<12;i++) { **p1=**p 阅读全文

摘要：#include <stdio.h>void copy_arr(double target[],double source[],int n){ for(int i=0;i<n;i++) { target[i]=source[i]; }}void copy_ptr(double target[],do 阅读全文