C++异常处理问题9-yiteyi-C++库

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                     #include <iostream>                   
                     using                               namespace                               std;                   
                             
                     class                               Test {                   
                                         static                               int                               count;                   
                                         int                               id;                   
                     public                               :                   
                                         Test() {                   
                                         count++;                   
                                         id = count;                   
                                         cout <<                               "Constructing object number "                               << id << endl;                   
                                         if                               (id == 4)                   
                                         throw                               4;                   
                                         }                   
                                         ~Test() { cout <<                               "Destructing object number "                               << id << endl; }                   
                     };                   
                             
                     int                               Test::count = 0;                   
                             
                     int                               main() {                   
                                         try                               {                   
                                         Test array[5];                   
                                         }                               catch                               (                               int                               i) {                   
                                         cout <<                               "Caught "                               << i << endl;                   
                                         }                   
                     }                   

（A）

Constructing object number 1
Constructing object number 2
Constructing object number 3
Constructing object number 4
Destructing object number 1
Destructing object number 2
Destructing object number 3
Destructing object number 4
Caught 4

（B）

Constructing object number 1
Constructing object number 2
Constructing object number 3
Constructing object number 4
Destructing object number 3
Destructing object number 2
Destructing object number 1
Caught 4

（C）

Constructing object number 1
Constructing object number 2
Constructing object number 3
Constructing object number 4
Destructing object number 4
Destructing object number 3
Destructing object number 2
Destructing object number 1
Caught 4

（D）

Constructing object number 1
Constructing object number 2
Constructing object number 3
Constructing object number 4
Destructing object number 1
Destructing object number 2
Destructing object number 3
Caught 4

答复: （B） 说明： 析构函数的调用顺序与构造函数的调用顺序相反。此外，在try块之后，仅对完全构造的对象调用析构函数。这个问题的小测验

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