关于virtual继承的问题

2007-07-16 04:41:08 241 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

基于Android的个人日记的设计与实现(程序+开题报告)(开题报告+源码）该系统的开发致力于解决传统纸质日记保存不便、易丢失、难以检索等问题，同时也克服了现有数字日记应用功能单一、用户体验不佳的局限，以期构建出一个全面、便捷、安全的数字化日记平台。其次，数字化的日记能够为用户提供更加丰富的交互方式，如文字、图片、音频和视频等，使日记内容更加生动和多彩。最后，随着云存储技术的融合，用户的日记数据将得到更好的保护，减少了数据丢失的风险。因此，设计并实现一个基于Android的个人日记应用，不仅能够满足现代人对日记功能的需求，还能够提供更加丰富和便捷的用户体验。阅读详情

#include <iostream>

using namespace std;

class Sofa
{
public:
Sofa(void)
{
cout << "Watching TV.." << endl;
}

void Setweight(int i)
{
weight = i;
cout << "Sofa weight.." << endl;

}
protected:
int weight;
};

class Bed
{
public:
Bed(void)
{
cout << "Sleeping..." << endl;
}
void Setweight(int i)
{
weight = i;
cout << "Bed weight.." << endl;
}
protected:
int weight;
};

class SofaBed:virtual public Sofa,virtual public Bed
{
public:
SofaBed()
{
cout << "Fold out ..." << endl;
}
};

void main(void)
{
SofaBed sb;
sb.Setweight(20);
}
为什么编译的时候提示F:\code\Multi-Inheritance.cpp(95) : error C2385: 'SofaBed::Setweight' is ambiguous

而我把中间代码修改为下面的则正常呢？
/*
class Tool
{
public:
void Setweight(int i)
{
weight = i;
cout << "Sofa weight.." << endl;
}
protected:
int weight;
};

class Bed: virtual public Tool
{
public:
Bed(void)
{
cout << "Sleeping..." << endl;
}
};

class Sofa: virtual public Tool
{
public:
Sofa(void)
{
cout << "Watching TV.." << endl;
}
};

class SofaBed:public Bed,public Sofa
{
public:
SofaBed(void)
{
cout << "Watching TV and Sleeping..." << endl;
}
};

*/

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