执行以下程序后，file.c的内容会是什么？

#include <stdio.h> 
int main() { 
    FILE *fp1,*fp2; 
    fp1 = fopen("file.c","w"); 
    fp2 = fopen("file.c","w"); 
    fputc('A',fp1); 
    fputc('B',fp2); 
    fclose(fp1); 
    fclose(fp2); 
    return 0; 
}