关于strtok函数的问题求大神解答

[baidu_31357663]

我现在分割一个
"user1:user1abcd;user2:user2abcd;user3:user3abcd;user4:user4abcd"这样的字符串，

我的代码如下：
ret1 = strtok(ret,":");
strcpy(name,ret1);
printf("name=%s\n",name);

while(ret1 != NULL)
{
if(ret1 != NULL)
{
ret1 = strtok(NULL,";");
strcpy(password,ret1);
printf("password=%s\n",password);
}
else
{
break;
}
if(ret1 != NULL)
{
ret1 = strtok(NULL,":");
strcpy(name,ret1);
printf("name=%s\n",name);
}
else
{
break;
}
}

执行完会出现这样的问题

name=user9
password=user9abcd
name=user10
password=user10abcd
name=user11
password=user11abcd
name=user12
password=user12abcd

Segmentation fault (core dumped)
最后出现一个分割错误该怎么解决？

[赵4老师]

作为一个C程序员，对 scanf,sscanf,fscanf printf,sprintf,fprintf 这类函数的用法，还是要做到“拳不离手，曲不离口”的。

#include <stdio.h>
char s[]="user1:user1abcd;user2:user2abcd;user3:user3abcd;user4:user4abcd";
char *p;
int n,r;
char name[64];
char password[64];
int main() {
    p=s;
    while (1) {
        r=sscanf(p,"%63[^:]:%63[^;];%n",name,password,&n);
        if (r==2) {
            printf("name:[%s] password:[%s]\n",name,password);
            p+=n;
        } else if (r==EOF) {
            break;
        }
    }
    return 0;
}
//name:[user1] password:[user1abcd]
//name:[user2] password:[user2abcd]
//name:[user3] password:[user3abcd]
//name:[user4] password:[user4abcd]
//