C++常见code!

C++常见code!

1.Change values via pointer[^stackedit]. Settings .

void swap(int** p,int** q)
{
int* temp;
temp = *p;
*p = *q;
*q =temp;
}
//调用的时候—-
int* p,*q;
swap(&p,&q);

---

2.Input pointer String

#include<stdio.h>
#include<string.h>
#include "stdio.h"

int main(int args,char* argc[])
{
char s[255];
char *p=s;;
scanf(“%s”,p);
puts(p);
return 0;
}