我正在使用的 IDE(visual studio 2012)没有显示任何错误或警告,但我基本上是在尝试将二进制数据写入一个名为 wizdata.bin 的文件,并且我已经声明了我的 Wizard 类的一些对象。Wizard 类的函数很少,有 4 个成员变量(1 个字符串和 3 个整数)。当我在 Wizard 类中调用名为“save”的函数时,控制台程序停止工作,但它确实设法编写了 Wizard 类成员变量名称,它是一个字符串。之后,它无法写入类中的任何整数。所以问题是我在尝试将整数写入二进制文件时做错了什么?Wizard.cpp 中推荐的部分导致崩溃。
这是我的代码文件:
向导.h:
#ifndef WIZARD_H
#define WIZARD_H
#include <string>
#include <fstream>
class Wizard
{
public:
Wizard();
Wizard( std::string name, int hp, int mp, int armor );
void print();
void save( std::ofstream& outFile );
void load( std::ifstream& inFile );
private:
std::string name;
int hitPoints;
int magicPoints;
int armor;
};
#endif
向导.cpp:
#include "Wizard.h"
#include <iostream>
using namespace std;
Wizard::Wizard()
{
name = "Default";
hitPoints = 0;
magicPoints = 0;
armor = 0;
}
Wizard::Wizard( string name, int hp, int mp, int armor )
{
this->name = name;
hitPoints = hp;
magicPoints = mp;
this->armor = armor;
}
void Wizard::print()
{
cout << "Name= " << name << endl;
cout << "HP= " << hitPoints << endl;
cout << "MP= " << magicPoints << endl;
cout << "Armor= " << armor << endl;
cout << endl;
}
void Wizard::save( ofstream& outFile )
{
outFile.write( name.c_str(), name.size() );
//outFile.write( (char*)hitPoints, sizeof(hitPoints) );
//outFile.write( (char*)magicPoints, sizeof(magicPoints) );
//outFile.write( (char*)armor, sizeof(armor) );
}
void Wizard::load( ifstream& inFile )
{
inFile.read( (char*)name.c_str(), name.size() );
inFile.read( (char*)&hitPoints, sizeof(hitPoints) );
inFile.read( (char*)&magicPoints, sizeof(magicPoints) );
inFile.read( (char*)&armor, sizeof(armor) );
}
和 Main.cpp:
#include "Wizard.h"
using namespace std;
int main()
{
Wizard wiz0( "Gandalf", 25, 100, 10 );
Wizard wiz1( "Loki", 50, 150, 12 );
Wizard wiz2( "Magius", 10, 75, 6 );
ofstream outFile;
outFile.open( "wizdata.bin", ios_base::binary );
if( outFile )
{
wiz0.save( outFile );
wiz1.save( outFile );
wiz2.save( outFile );
outFile.close();
}
return 0;
}
这是加载数据的第二个控制台应用程序的“Main.cpp”:
#include "Wizard.h"
#include <iostream>
using namespace std;
int main()
{
Wizard wiz0;
Wizard wiz1;
Wizard wiz2;
cout << "BEFORE LOADING..." << endl;
wiz0.print();
wiz1.print();
wiz2.print();
ifstream inFile;
inFile.open( "wizdata.bin", ios_base::binary );
if( inFile )
{
wiz0.load( inFile );
wiz1.load( inFile );
wiz2.load( inFile );
inFile.close();
}
cout << "AFTER LOADING..." << endl;
wiz0.print();
wiz1.print();
wiz2.print();
return 0;
}
加载数据后,这些是值: 名称:甘道夫 HP:25 MP:100 护甲:10
名称:Loki2 生命值:38400 MP:3072 护甲:1734429952
名称:ius HP:75 MP:6 护甲:0