相对于C++的继承编写,Python更简洁,而且效率也是很高的,下面编写一个简单Python的继承例子。
复制代码 代码如下:
#!/usr/bin/python
#filename: pyclass.py
class Member:
def __init__(self, name, age):
self.name = name
self.age = age
print \’Member init:%s\’ % self.name
def tell(self):
print \’Name:%s,Age:%d\’ % (self.name, self.age),
class Student(Member):
def __init__(self, name, age, marks):
Member.__init__(self, name, age)
self.marks = marks
print \’Student init:%s\’ % self.name
def tell(self):
Member.tell(self)
print \’Marks:%d\’ % self.marks
class Teacher(Member):
def __init__(self, name, age, salary):
Member.__init__(self, name, age)
self.salary = salary
print \’Teacher init:%s\’ % self.name
def tell(self):
Member.tell(self)
print \’Salary:%d\’ % self.salary
s = Student(\’Tom\’, 20, 80)
t = Teacher(\’Mrs.Huang\’, 30, 50000)
members = [s, t]
for mem in members:
mem.tell()
运行效果:
复制代码 代码如下:
[root@localhost hhl]# python pyclass.py
Member init:Tom
Student init:Tom
Member init:Mrs.Huang
Teacher init:Mrs.Huang
Name:Tom,Age:20 Marks:80
Name:Mrs.Huang,Age:30 Salary:50000
我们同样编写同样效果的C++例子:
复制代码 代码如下:
//filename: class.cpp
#include
#include
using namespace std;
class Member
{
public:
Member(char *n, int a);
void tell();
private:
char name[10];
int age;
};
Member::Member(char *n, int a)
{
memcpy(name, n, sizeof(name));
age = a;
cout<<\”Member init:\”<
void Member::tell()
{
cout<<\”Name:\”<
class Student:public Member
{
public:
Student(char *n, int a, int m);
void tell_s();
private:
int marks;
};
Student::Student(char *n, int a, int m):Member(n, a)
{
marks = m;
cout<<\”Student init:\”<
void Student::tell_s()
{
Member::tell();
cout<<\”Marks:\”<
class Teacher:public Member
{
public:
Teacher(char *n, int a, int s);
void tell_t();
private:
int salary;
};
Teacher::Teacher(char *n, int a, int s):Member(n, a)
{
salary = s;
cout<<\”Teacher init:\”<
void Teacher::tell_t()
{
Member::tell();
cout<<\”Salary:\”<
int main(void)
{
Student s(\”Tom\”, 20, 80);
Teacher t(\”Mrs.Huang\”, 30, 50000);
s.tell_s();
t.tell_t();
return 0;
}
运行效果:
复制代码 代码如下:
[root@localhost hhl]# ./class
Member init:Tom
Student init:Tom
Member init:Mrs.Huang
Teacher init:Mrs.Huang
Name:Tom,Age:20,Marks:80
Name:Mrs.Huang,Age:30,Salary:50000
这两者的运行效果是一样的,但是python更简洁些。。。