核心是‘过程’二字
过程的终极奥义：将程序流程化
过程是‘流水线’，用来分步骤解决问题的
核心是‘对象’二字
对象的终极奥义：将程序‘整合’
对象是‘容器’，用来盛放 数据 与 功能的# 学生的数据 stu_name = ‘xxq‘ stu_age = 18 stu_gender = ‘male‘ # 学生的功能 def tell_stu_info(): print(f‘学生信息 - 名字：{stu_name} 年龄：{stu_age} 性别：{stu_gender}‘) # 课程的数据 course_name = ‘python‘ course_period = ‘6month‘ course_score = 10 # 课程的功能 def tell_course_info(): print(f‘课程信息 - 名称：{course_name} 周期：{course_period} 学分：{course_score}‘) def set_info(): global stu_name global stu_age global stu_gender stu_name = ‘egon‘ stu_age = 80 stu_gender = ‘female‘ tell_stu_info() set_info()
# 学生的功能 def tell_stu_info(stu_obj): print(‘学生信息 - 名字：%s 年龄：%s 性别：%s‘ % ( stu_obj[‘stu_name‘], stu_obj[‘stu_age‘], stu_obj[‘stu_gender‘] )) def set_info(stu_obj, x, y, z): stu_obj[‘stu_name‘] = x stu_obj[‘stu_age‘] = y stu_obj[‘stu_gender‘] = z # stu_name = ‘egon‘ # stu_age = 80 # stu_gender = ‘female‘ stu_obj = { ‘stu_name‘: ‘xxq‘, ‘stu_age‘: 18, ‘stu_gender‘: ‘male‘, ‘tell_stu_info‘: tell_stu_info, ‘set_info‘: set_info, } print(stu_obj)
# 学生的功能 def tell_stu_info(stu_obj): print(‘学生信息 - 名字：%s 年龄：%s 性别：%s‘ % ( stu_obj[‘stu_name‘], stu_obj[‘stu_age‘], stu_obj[‘stu_gender‘] )) def set_info(stu_obj, x, y, z): stu_obj[‘stu_name‘] = x stu_obj[‘stu_age‘] = y stu_obj[‘stu_gender‘] = z # stu_name = ‘egon‘ # stu_age = 80 # stu_gender = ‘female‘ stu_obj = { ‘stu_school‘: ‘oldboy‘, ‘stu_name‘: ‘xxq‘, ‘stu_age‘: 18, ‘stu_gender‘: ‘male‘, ‘tell_stu_info‘: tell_stu_info, ‘set_info‘: set_info, } stu1_obj = { ‘stu_school‘: ‘oldboy‘, ‘stu_name‘: ‘qwe‘, ‘stu_age‘: 18, ‘stu_gender‘: ‘female‘, ‘tell_stu_info‘: tell_stu_info, ‘set_info‘: set_info, } print(stu_obj)
class Student: # 1.变量的定义 stu_school = ‘oldboy‘ # 2.功能的定义 def tell_stu_info(stu_obj): print(‘学生信息 - 名字：%s 年龄：%s 性别：%s‘ % ( stu_obj[‘stu_name‘], stu_obj[‘stu_age‘], stu_obj[‘stu_gender‘] )) def set_info(stu_obj, x, y, z): stu_obj[‘stu_name‘] = x stu_obj[‘stu_age‘] = y stu_obj[‘stu_gender‘] = z # print(‘=======>‘) # 属性访问的语法 # 1.访问数据属性 # 2.访问函数属性 # print(Student.__dict__) # {‘__module__‘: ‘__main__‘, ‘stu_school‘: ‘oldboy‘, ‘tell_stu_info‘: <function Student.tell_stu_info at 0x035B8418>, ‘set_info‘: <function Student.set_info at 0x035B83D0>, ‘__dict__‘: <attribute ‘__dict__‘ of ‘Student‘ objects>, ‘__weakref__‘: <attribute ‘__weakref__‘ of ‘Student‘ objects>, ‘__doc__‘: None} # print(Student.stu_school) # oldboy # 再调用类产生对象 stu1_obj = Student() stu2_obj = Student() stu3_obj = Student() # stu1_obj.__dict__[‘stu_name‘] = ‘eogn‘ # stu1_obj.__dict__[‘stu_age‘] = 16 # stu1_obj.__dict__[‘stu_gender‘] = ‘male‘ # print(stu1_obj.__dict__) # {‘stu_name‘: ‘eogn‘, ‘stu_age‘: 16, ‘stu_gender‘: ‘male‘} stu1_obj.stu_name = ‘eogn‘ stu1_obj.stu_age = 16 stu1_obj.stu_gender = ‘male‘ print(stu1_obj.__dict__) # {‘stu_name‘: ‘eogn‘, ‘stu_age‘: 16, ‘stu_gender‘: ‘male‘}
class Student: # 1、变量的定义 stu_school = ‘oldboy‘ count = 0 # 空对象,‘egon‘,18,‘male‘ def __init__(self, x, y, z): Student.count += 1 self.stu_name = x # 空对象.stu_name=‘egon‘ self.stu_age = y # 空对象.stu_age=18 self.stu_gender = z # 空对象.stu_gender=‘male‘ # return None # 2、功能的定义 def tell_stu_info(self): print(‘学生信息：名字：%s 年龄：%s 性别：%s‘ % ( self.stu_name, self.stu_age, self.stu_gender )) def set_info(self, x, y, z): self.stu_name = x self.stu_age = y self.stu_gender = z def choose(self, x): print(‘正在选课‘) self.course = x stu1_obj = Student(‘egon‘, 18, ‘male‘) # Student.__init__(空对象,‘egon‘,18,‘male‘) stu2_obj = Student(‘lili‘, 19, ‘female‘) stu3_obj = Student(‘jack‘, 20, ‘male‘) # print(stu1_obj.count) # print(stu2_obj.count) # print(stu3_obj.count)
# 1.类的数据属性 print(Student.stu_school) # oldboy # 2.类的函数属性 print(Student.tell_stu_info) # <function Student.tell_stu_info at 0x00F78460> print(Student.set_info) # <function Student.set_info at 0x01728418>
# 1.类的数据属性是共享给所有对象用的，大家访问的地址都一样 print(id(Student.stu_school)) # 23914752 print(id(stu1_obj.stu_school)) # 23914752 print(id(stu2_obj.stu_school)) # 23914752 print(id(stu3_obj.stu_school)) # 23914752 Student.stu_school=‘OLDBOY‘ stu1_obj.stu_school=‘OLDBOY‘ print(stu1_obj.stu_school) # OLDBOY print(Student.stu_school) # OLDBOY print(stu2_obj.stu_school) # OLDBOY print(stu3_obj.stu_school) # OLDBOY
# 类调用自己的函数属性必须严格按照函数的用法来 print(Student.tell_stu_info) # <function Student.tell_stu_info at 0x00A58460> print(Student.set_info) # <function Student.set_info at 0x00A58418> Student.tell_stu_info(stu1_obj) # 学生信息：名字：egon 年龄：18 性别：male Student.tell_stu_info(stu2_obj) # 学生信息：名字：lili 年龄：19 性别：female Student.tell_stu_info(stu3_obj) # 学生信息：名字：jack 年龄：20 性别：male Student.set_info(stu1_obj,‘EGON‘,19,‘MALE‘) Student.tell_stu_info(stu1_obj) # 学生信息：名字：EGON 年龄：19 性别：MALE # 绑定方法的特殊之处在于：谁来调用绑定方法就会将谁当做第一个参数自动传入 print(Student.tell_stu_info) # <function Student.tell_stu_info at 0x01948460> print(stu1_obj.tell_stu_info) # <bound method Student.tell_stu_info of <__main__.Student object at 0x0194B0B8>> print(stu2_obj.tell_stu_info) # <bound method Student.tell_stu_info of <__main__.Student object at 0x0194B070>> print(stu3_obj.tell_stu_info) # <bound method Student.tell_stu_info of <__main__.Student object at 0x0194B250>> stu1_obj.tell_stu_info() # tell_stu_info(stu1_obj) # 学生信息：名字：egon 年龄：18 性别：male stu2_obj.tell_stu_info() # tell_stu_info(stu2_obj) # 学生信息：名字：lili 年龄：19 性别：female stu3_obj.tell_stu_info() # tell_stu_info(stu3_obj) # 学生信息：名字：jack 年龄：20 性别：male stu1_obj.choose(‘python全栈开发‘) print(stu1_obj.course) # 正在选课 # python全栈开发 stu2_obj.choose(‘linux运维‘) print(stu2_obj.course) # 正在选课 # linux运维 stu3_obj.choose(‘高级架构师‘) print(stu3_obj.course) # 正在选课 # 高级架构师 l1 = [‘aa‘, ‘bb‘, ‘cc‘] # l=list([1,2,3]) l2 = [111, 222, 333] # l=list([1,2,3]) print(l1.append) # <built-in method append of list object at 0x0114D048> print(list.append) # <method ‘append‘ of ‘list‘ objects> l1.append(‘dd‘) l2.append(‘dd‘) print(l1) # [‘aa‘, ‘bb‘, ‘cc‘, ‘dd‘] print(l2) # [111, 222, 333, ‘dd‘] l1 = [‘aa‘, ‘bb‘, ‘cc‘] # l=list([1,2,3]) l2 = [111, 222, 333] # l=list([1,2,3]) list.append(l1, ‘dd‘) list.append(l2, ‘dd‘) print(l1) # [‘aa‘, ‘bb‘, ‘cc‘, ‘dd‘] print(l2) # [111, 222, 333, ‘dd‘]
原文：https://www.cnblogs.com/dingbei/p/12656999.html