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计算机完成下列程序,使得该程序输出结果如下: number of instance: 1 number of instance: 2 number of instance: 1 number of instance: 0 #include "iostream.h" class Process {     static int instance;     public:         Process( )         {             1         }         ~Process( )         {              2         }         static void print( )     {         cout << "number of instance: " << instance << endl;     } }; 3 int main( ) {     Process *p1, *p2;     p1 = new Process;     p1->print( );     p2 = new Process;     p2->print( );     delete p1;     Process::print( );     delete p2;     Process::print( );     return 0; }-笔试面试资料

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提供答案分析,通过本文《完成下列程序,使得该程序输出结果如下: number of instance: 1 number of instance: 2 number of instance: 1 number of instance: 0 #include "iostream.h" class Process {     static int instance;     public:         Process( )         {             1         }         ~Process( )         {              2         }         static void print( )     {         cout << "number of instance: " << instance << endl;     } }; 3 int main( ) {     Process *p1, *p2;     p1 = new Process;     p1->print( );     p2 = new Process;     p2->print( );     delete p1;     Process::print( );     delete p2;     Process::print( );     return 0; }-笔试面试资料》可以理解其中的代码原理,这是一篇很好的求职学习资料
本站提供程序员计算机面试经验学习,笔试经验,包括字节跳动/头条,腾讯,阿里,美团,滴滴出行,网易,百度,京东,小米,华为,微软等互联网大厂真题学习背诵。

答案:

完成下列程序,使得该程序输出结果如下:

number of instance: 1

number of instance: 2

number of instance: 1

number of instance: 0

#include "iostream.h"

class Process

{

    static int instance;

    public:

        Process( )

        {

            1

        }

        ~Process( )

        {

             2

        }    

    static void print( )

    {

        cout << "number of instance: " << instance << endl;

    }

};

3

int main( )

{

    Process *p1, *p2;

    p1 = new Process;

    p1->print( );

    p2 = new Process;

    p2->print( );

    delete p1;

    Process::print( );

    delete p2;

    Process::print( );

    return 0;

}

完成下列程序,使得该程序输出结果如下:      number of instance: 1      number of instance: 2      number of instance: 1      number of instance: 0       #include &quot;iostream.h&quot;      class Process      {           static int instance;          public:               Process( )               {                      1                   }               ~Process( )               {                           2                   }               static void print( )           {               cout &lt;&lt; &quot;number of instance: &quot;     &lt;&lt; instance &lt;&lt; endl;           }      };               3           int main( )      {           Process *p1, *p2;            p1 = new Process;           p1-&gt;print( );           p2 = new Process;           p2-&gt;print( );            delete p1;           Process::print( );           delete p2;           Process::print( );            return 0;   }-笔试面试资料 区块链毕设学生286918393号
1. instance++;
2. instance–;
3. int Process::instance = 0;

2020-12-21 20:41:51 回复(0)

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未经允许不得转载: 京大飞辅助网程序员面试-区块链javago面经 » 计算机完成下列程序,使得该程序输出结果如下: number of instance: 1 number of instance: 2 number of instance: 1 number of instance: 0 #include "iostream.h" class Process {     static int instance;     public:         Process( )         {             1         }         ~Process( )         {              2         }         static void print( )     {         cout << "number of instance: " << instance << endl;     } }; 3 int main( ) {     Process *p1, *p2;     p1 = new Process;     p1->print( );     p2 = new Process;     p2->print( );     delete p1;     Process::print( );     delete p2;     Process::print( );     return 0; }-笔试面试资料

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