用C++语言类型转换定义两个类Time12和Time24:(1)Time12类表示12进制时间,Time24类表示24进制时间;(2)类中定义函数,完成两个类之间的转换;(3)类中定义函数,完成类到int类型的转换;(4)类中定义函数,完成int类型到两个类之间的转换。
时间: 2024-01-06 17:04:14 浏览: 35
好的,这是一个关于类型转换的问题。我来逐一回答:
1. Time12类和Time24类的定义:
```cpp
class Time12 {
private:
int hour;
int minute;
bool am;
public:
Time12(int h, int m, bool ap): hour(h), minute(m), am(ap) {}
};
class Time24 {
private:
int hour;
int minute;
public:
Time24(int h, int m): hour(h), minute(m) {}
};
```
2. 实现两个类之间的转换:
```cpp
class Time12 {
...
public:
operator Time24() const {
if (am) {
if (hour == 12) {
return Time24(0, minute);
} else {
return Time24(hour, minute);
}
} else {
if (hour == 12) {
return Time24(12, minute);
} else {
return Time24(hour+12, minute);
}
}
}
};
class Time24 {
...
public:
operator Time12() const {
if (hour == 0) {
return Time12(12, minute, true);
} else if (hour < 12) {
return Time12(hour, minute, true);
} else if (hour == 12) {
return Time12(12, minute, false);
} else {
return Time12(hour-12, minute, false);
}
}
};
```
3. 实现类到int类型的转换:
```cpp
class Time12 {
...
public:
operator int() const {
if (am) {
return hour*60 + minute;
} else {
return (hour+12)*60 + minute;
}
}
};
class Time24 {
...
public:
operator int() const {
return hour*60 + minute;
}
};
```
4. 实现int类型到两个类之间的转换:
```cpp
class Time12 {
...
public:
static Time12 from_int(int time) {
int hour = time / 60;
int minute = time % 60;
if (hour == 0) {
return Time12(12, minute, true);
} else if (hour < 12) {
return Time12(hour, minute, true);
} else if (hour == 12) {
return Time12(12, minute, false);
} else {
return Time12(hour-12, minute, false);
}
}
};
class Time24 {
...
public:
static Time24 from_int(int time) {
int hour = time / 60;
int minute = time % 60;
return Time24(hour, minute);
}
};
```
以上就是我对你的问题的回答,希望能够帮到你。