我用Turbo c/c++ 3.0编如下程序 main() { printf("ni hao ！\n"); } 最后若先用compile进行编译无法link and run ... 提示Function should return a value if I first link but does not compile then I can run please tell me why!!!????? Thanks very much !!!!

若我用Turbo c/c++ 3.0编如下程序 main() { printf("ni hao ！\n"); return 0; } 却很正常!为何要输入return 0????

c++需要函数返回值,main函数也不例外.你输入reture 0,让main返回0值.当然可以运行.或者你直接写

void main()

{printf("ni hao! \n");

}