c++ vs2015重载赋值操作符代码示范

严重性    代码    说明    项目    文件    行    禁止显示状态 错误    C4996    'strcpy': This function or variable may be unsafe. Consider using strcpy_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.    cc19a_demo    d:\users\tt2018\documents\visual studio 2015\projects\cc19a_demo\cc19a_demo\cc19a_demo.cpp    29     解决方法：代码顶部添加 #define  _CRT_SECURE_NO_WARNINGS

#define _CRT_SECURE_NO_WARNINGS

#include //赋值操作符练习


using namespace std;

class String
{
public:
	String(char const *ptrChars="");
	String &operator=(String const&);
	String &operator=(char const *);//s="cat";这种方式
	String &operator=(char); //s='a';//单个字符
	void print();

private:
	char *ptrChars;

};
void String::print()
{
	cout