关于类的问题 - 编程论坛

#2

诸葛欧阳2015-07-12 19:18

看你的构造函数

#3

w2009w2015-07-12 19:58

void clock::showtime(){cout<<Hour<<":"<<Minute<<":"<<Second<<endl;}

#4

菜鸟，求帮忙2015-07-13 10:05

额，说清楚点啦，不是那个，那是复制的时候弄得（只是个意外），

#5

菜鸟，求帮忙2015-07-13 10:08

F:\彭苏庄\类2.cpp In membe18
F:\彭苏庄\类2.cpp `Mintue' undeclared (first use this function) r function `void clock::settime(int, int, int)':
(Each undeclared identifier is reported only once for each function it appears in.)
At global scope:
22 F:\彭苏庄\类2.cpp expected unqualified-id before "void"
22 F:\彭苏庄\类2.cpp expected constructor, destructor, or type conversion before "void"
22 F:\彭苏庄\类2.cpp expected `,' or `;' before "void"
这是错误提示

#6

rjsp2015-07-13 11:17

程序代码：

#include <iostream>

class myclock
{
public:
    myclock( unsigned hour, unsigned minute, unsigned second );
private:
    unsigned hour_, minute_, second_;

    friend std::ostream& operator<<( std::ostream& os, const myclock& c );
};

inline myclock::myclock( unsigned hour, unsigned minute, unsigned second ) : hour_(hour), minute_(minute), second_(second)
{
}

std::ostream& operator<<( std::ostream& os, const myclock& c )
{
    return os << c.hour_ << ':' << c.minute_ << ':' << c.second_;
}

using namespace std;
int main( void )
{
    myclock myc( 20, 40, 26 );
    cout << myc << endl;

    return 0;
}

#7

菜鸟，求帮忙2015-07-13 12:19

算了吧，完全看不懂