#include<stdio.h> main(){ char a1[5],a2[5],a3[5],a4[5];scanf("%s%s",a1,a2);gets(a3);gets(a4);puts(a1);puts(a2);puts(a3);puts(a4);}输出结果是 aabbcc dd求解释a1,a2,a3,a4分别得到什么赋值