#include
main()
{
textbackground(0);----------------这行编译通不过阿
FILE *a;
int i,j;
if((a=fopen("aa","a"))==NULL)
return(0);
for(i=1;i<=9;i++)
{
for(j=1;j<=i;j++)
{
fprintf(a,"%dX%d=%d\t",i,j,i*j);
}
fputc('\n',a);
}
}
提示:
/tmp/ccwR3vi8.o: In function `main':
aay.c:(.text+0x14): undefined reference to `textbackground'
collect2: ld returned 1 exit status
这个是控制背景颜色阿,我在linux下编译的
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