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How many times does the constructor execute?
2022-06-13 01:21:00 【Zhao_| adult】
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1. How many times does the constructor execute ?
If MyClass Is a class , perform MyClass a[5],*b[6];
, Constructor executes several times ?–> perform 5 Time .
Execute constructor , Is to start constructing objects , Partition memory for objects ; Similarly, if the pointer is given new When a memory space , The constructor will be called ;
MyClass a[5],*b[6];
//a[5]: Generate an array , Will be allocated 5 Objects ;
// *b[6]: Generate a pointer array , Each element can point to a data type of MyClass object ; however , Memory has not been allocated at this time ;
A a[5];
A *b[6];
for(int i=0;i<6;i++)
{
b[i]=new A;// by b Allocate memory space for each object of the ;
}
// here , The constructor will call 11 Time ;
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