关于c语言的问题,高手都进来看看,分高很哦!!!答:double math,chinese,english,average,sum; public: stu() { } stu(char n[20],double ma,double chin,double eng) { strcpy(name,n); math=ma; chinese=chin; english=eng; } double getsum() { sum=chinese+english+math; return sum; } double getaver() { average=getsum()/3; return average...