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私有构造函数和静态构造函数
In the below program, we are creating a C++ program to assign values to the private data members without using constructor.
在下面的程序中，我们将创建一个C ++程序，以在不使用构造函数的情况下为私有数据成员分配值 。
/* C++ program to assign values to the
private data members without using constructor */
#include <iostream>
#include <string>
using namespace std;
// class definition
// "student" is a class
class Student {
private: // private access specifier
int rollNo;
string stdName;
float perc;
public: //public access specifier
//function to set the values
void setValue()
{
rollNo = 0;
stdName = "None";
perc = 0.0f;
}
//function to print the values
void printValue()
{
cout << "Student's Roll No.: " << rollNo << "\n";
cout << "Student's Name: " << stdName << "\n";
cout << "Student's Percentage: " << perc << "\n";
}
};
int main()
{
// object creation
Student std;
//calling function
std.setValue();
std.printValue();
return 0;
}
Output
输出量
Student's Roll No.: 0
Student's Name: None
Student's Percentage: 0
See the above code, we created a method named setValue() – In the method definition, we are assigning default values to the private data members.
参见上面的代码，我们创建了一个名为setValue()的方法-在方法定义中，我们正在将默认值分配给私有数据成员。
翻译自: https://www.includehelp.com/cpp-programs/assign-values-to-the-private-data-members-without-using-constructor.aspx
私有构造函数和静态构造函数