/* File: main cpp */ # include< ostream.h>∥/说明输出流对象cout # include"heoh"/包含函数 hello()的原型 main(int argc, char * argvlDi cout<< hello( world );9 /* File: main.cpp */ # include <iostream.h> //说明输出流对象cout # include "hello.h" //包含函数hello( )的原型 main(int argc, char *argv[ ]) { cout << hello("world"); }