超级小白求助！！！quq为啥我的字符串拷贝完了之后是乱码

[阿言言言言言]

新人通讯录作业的一个函数出现了问题quqqqqqqqqqq
函数功能是交换输入节点的内容
求求大佬们帮帮我趴orz
函数如下：
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
char yes[]={'y','e','s','\0'};
char no[]={'n','o','\0'};
char na[20];
char ge[3];
char nu[8][13];
char ad[50];
int da[3];
typedef struct information{
char name[20];
char gender[3];
char number[8][13];
char address[50];
int date[3];
struct information *next;
} information;
void exchange(information *p,information *q){
char na2[20];
char ge2[3];
char nu2[8][13];
char ad2[50];
int da2[3];
int i,j;
memcpy(na,q->name,sizeof(q->name));
memcpy(ge,q->gender,sizeof(q->gender));
memcpy(nu,q->number,sizeof(q->number));
memcpy(ad,q->address,sizeof(q->number));
memcpy(da,q->date,sizeof(q->date));
memcpy(na2,p->name,sizeof(p->name));
memcpy(ge2,p->gender,sizeof(p->gender));
memcpy(nu2,p->number,sizeof(p->number));
memcpy(ad2,p->address,sizeof(p->address));
memcpy(da2,p->date,sizeof(p->date));
memcpy(p->name,na,sizeof(na));
memcpy(p->gender,ge,sizeof(ge));
memcpy(p->number,nu,sizeof(nu));
strcpy(p->address,ad);//就是这一步出现错误，将ad的值赋给p->address结果链表内的值输出之后是乱码
memcpy(p->date,da,sizeof(da));
strcpy(q->name,na2);
strcpy(q->gender,ge2);
strcpy(q->address,ad2);
for(i=0;i<=7;i++){
for(j=0;j<=13;j++){
p->number[i][j]=nu2[i][j];
}
}
for(i=0;i<=2;i++){
p->date[i]=da2[i];
}
printf("%s\n",ad);//这个是用来检查错误的
}

[阿言言言言言]

好像就是字符串赋给数组的时候出问题啦！！！我该怎么办呀orz

[自信男孩]

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

char yes[]={'y','e','s','\0'};
char no[]={'n','o','\0'};

char na[20];
char ge[3];
char nu[8][13];
char ad[50];
int da[3];

typedef struct information{
    char name[20];
    char gender[3];
    char number[8][13];
    char address[50];
    int date[3];
    struct information *next;
} information;

void exchange(information *p,information *q)
{
    char na2[20];
    char ge2[3];
    char nu2[8][13];
    char ad2[50];
    int da2[3];
    int i,j;
#if 0
    memcpy(na,q->name,sizeof(q->name));
    memcpy(ge,q->gender,sizeof(q->gender));
    memcpy(nu,q->number,sizeof(q->number));
    memcpy(ad,q->address,sizeof(q->number));
    memcpy(da,q->date,sizeof(q->date));
    memcpy(na2,p->name,sizeof(p->name));
    memcpy(ge2,p->gender,sizeof(p->gender));
    memcpy(nu2,p->number,sizeof(p->number));
    memcpy(ad2,p->address,sizeof(p->address));
    memcpy(da2,p->date,sizeof(p->date));
    memcpy(p->name,na,sizeof(na));
    memcpy(p->gender,ge,sizeof(ge));
    memcpy(p->number,nu,sizeof(nu));
    strcpy(p->address,ad);//就是这一步出现错误，将ad的值赋给p->address结果链表内的值输出之后是乱码
    memcpy(p->date,da,sizeof(da));
    strcpy(q->name,na2);
    strcpy(q->gender,ge2);
    strcpy(q->address,ad2);
    for(i=0;i<=7;i++){
        for(j=0;j<=13;j++){
            p->number[i][j]=nu2[i][j];
        }
    }
    for(i=0;i<=2;i++){
        p->date[i]=da2[i];
    }
#else
    memcpy(p, q, sizeof(information));
#endif
    //printf("%s\n",ad);//这个是用来检查错误的
    printf("%s\n", p->address);//这个是用来检查错误的
}

试一下这种方法。