我们刚学派生类,小类编了以下一个作业程序,但不能运行,不知有哪位能给小弟指出错误:#include<iostream.h>class fruit{ fruitcolour,fruitsize;float fruitprice; (char fc,char fs,float fp) {fruitcolour=fc;fruitsize=fs;fruitprice=fp;}};class trees { leafcolour;char leafsize;float averageheight; (char lc,char ls,float ah) {leafcolour=lc;leafsize=ls;averageheight=ah;}};class fruit,public trees{ (char fco,char fsi,float fpr,char lco,char lsi,float ahi):fruit(fco,fsi,fpr),trees(lco,lsi,ahi){}};void main(){ apple (red,big,5.00,green,thick,2.00); cout<<"the apples's colour is "<<apple::fruitcolour;}(我用水果和树两个类派生出萍果这个类,其中错误的地方请大家指出!谢谢!)
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这个程序有五个错误，分为两类：一类是在参数类型与形参类型不符：apple类的构造函数 (char fco,char fsi,float fpr,char lco,char lsi,float ahi)的第1、2、4、5个参数是char，而在main()函数中你给出的是 red, big, green, thick,系统认为它们是变量名，而又找不到它们的定义，所以出错；第二类是在coutclass fruit{ fruitsize;float fruitprice; fruitcolour;fruit(char fc,char fs,float fp){fruitcolour=fc;fruitsize=fs;fruitprice=fp;}};class trees { leafcolour;char leafsize;float averageheight; (char lc,char ls,float ah){leafcolour=lc;leafsize=ls;averageheight=ah;}};class fruit,public trees{ (char fco,char fsi,float fpr,char lco,char lsi,float ahi):fruit(fco,fsi,fpr),trees(lco,lsi,ahi){}};void main(){apple aa('r','b',5。00,'g','t',2。00);cout#include class fruit{ fruitsize[10];float fruitprice; fruitcolour[10];fruit(char *fc,char *fs,float fp){strcpy(fruitcolour,fc);strcpy(fruitsize,fs);fruitprice=fp;}};class trees { leafcolour[10];char leafsize[10];float averageheight; (char *lc,char *ls,float ah){strcpy(leafcolour,lc);strcpy(leafsize,ls);averageheight=ah;}};class fruit,public trees{ (char *fco,char *fsi,float fpr,char *lco,char *lsi,float ahi):fruit(fco,fsi,fpr),trees(lco,lsi,ahi){}};void main(){apple aa("red","big",5。00,"green","thick",2。00);cout<<"the apples's colour is "<< uitcolour;}。