c语言缓冲区的问题，请懂的人指导一下

Question

#include
char outbuf[BUFSIZ];
int main()
{
setbuf(stdout,outbuf);
puts("Tis is a test of buffered output.\n");
puts(outbuf);
fflush(stdout);
puts(outbuf);
return 0;
}
输出结果：
This is test of buffered output.
This is test of buffered output.
This is test of buffered output.
This is test of buffered output.
求举例讲解一下setbuf()函数
再把程序一句一句讲一下(主要是outbuf与输出流相连这一句有什么作用不懂），多谢了

Answer 1

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