#include<stdio.h>
#include<string.h>
main()
{
    static char *s="Chinese";
    static char *t="American";
    printf("\n\ns=%s",s);
    printf("\nt=%s",t);
    strcpy(s,t);
         printf("Copy After:\n");
    printf("\ns=%s",s);
    printf("\nt=%t",t);
}
结果为：
s=Chinese
t=American
Copy After:
s=American
t=
为什么拷贝完字符串后t的值会丢失？如果不定义成常量，用scanf函数读入两个相同的字符串，再进行复制拷贝，就不会出现字符串丢失现象。什么地方出错了？请高手指教。

#include<stdio.h>
#include<string.h>
main()
{
    char *s,*t;
         scanf("%s%s",s,t);
    printf("\n\ns=%s",s);
    printf("\nt=%s",t);
    strcpy(s,t);
         printf("Copy After:\n");
    printf("\ns=%s",s);
    printf("\nt=%t",t);
}
结果为：
s=Chinese
t=American
Copy After:
s=American
t=American