Signed-off-by: twowater <[email protected]>

Author: walter201230

Code/Python10Code/.idea/Python10Code.iml

@@ -0,0 +1,2 @@
+#!/usr/bin/env python3
+# -*- coding: UTF-8 -*-

Code/Python10Code/.idea/inspectionProfiles/profiles_settings.xml

@@ -0,0 +1,2 @@
+#!/usr/bin/env python3
+# -*- coding: UTF-8 -*-

Code/Python10Code/.idea/misc.xml

@@ -0,0 +1,9 @@
+#!/usr/bin/env python3
+# -*- coding: UTF-8 -*-
+
+class User(object):
+    def __init__(self, name, age):
+        self.name = name;
+        self.age = age;
+
+user=User('两点水',23)

Code/Python10Code/.idea/modules.xml

@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+# -*- coding: UTF-8 -*-
+
+class Number(object):
+    def __init__(self, value):
+        self.value = value
+
+    def __eq__(self, other):
+        print('__eq__')
+        return self.value == other.value
+
+    def __ne__(self, other):
+        print('__ne__')
+        return self.value != other.value
+
+    def __lt__(self, other):
+        print('__lt__')
+        return self.value < other.value
+
+    def __gt__(self, other):
+        print('__gt__')
+        return self.value > other.value
+
+    def __le__(self, other):
+        print('__le__')
+        return self.value <= other.value
+
+    def __ge__(self, other):
+        print('__ge__')
+        return self.value >= other.value
+
+
+if __name__ == '__main__':
+    num1 = Number(2)
+    num2 = Number(3)
+    print('num1 == num2 ? --------> {} \n'.format(num1 == num2))
+    print('num1 != num2 ? --------> {} \n'.format(num1 == num2))
+    print('num1 < num2 ? --------> {} \n'.format(num1 < num2))
+    print('num1 > num2 ? --------> {} \n'.format(num1 > num2))
+    print('num1 <= num2 ? --------> {} \n'.format(num1 <= num2))
+    print('num1 >= num2 ? --------> {} \n'.format(num1 >= num2))

Code/Python10Code/.idea/workspace.xml

@@ -0,0 +1,19 @@
+#!/usr/bin/env python3
+# -*- coding: UTF-8 -*-
+
+class User(object):
+    def __new__(cls, *args, **kwargs):
+        # 打印 __new__方法中的相关信息
+        print('调用了 def __new__ 方法')
+        print(args)
+        # 最后返回父类的方法
+        return super(User, cls).__new__(cls)
+
+    def __init__(self, name, age):
+        print('调用了 def __init__ 方法')
+        self.name = name
+        self.age = age
+
+
+if __name__ == '__main__':
+    usr = User('两点水', 23)

Code/Python10Code/com/__init__.py

@@ -0,0 +1,16 @@
+#!/usr/bin/env python3
+# -*- coding: UTF-8 -*-
+
+class User(object):
+
+    name=''
+
+    def __setattr__(self, name, value):
+        # 每一次属性赋值时, __setattr__都会被调用，因此不断调用自身导致无限递归了
+        # 会造成程序奔溃
+        self.name = value
+
+
+if __name__ == '__main__':
+    user = User()
+    user.name='两点水'

Code/Python10Code/com/twowater/__init__.py

@@ -0,0 +1,34 @@
+#!/usr/bin/env python3
+# -*- coding: UTF-8 -*-
+
+class User(object):
+    def __getattr__(self, name):
+        print('调用了 __getattr__ 方法')
+        return super(User, self).__getattr__(name)
+
+    def __setattr__(self, name, value):
+        print('调用了 __setattr__ 方法')
+        return super(User, self).__setattr__(name, value)
+
+    def __delattr__(self, name):
+        print('调用了 __delattr__ 方法')
+        return super(User, self).__delattr__(name)
+
+    def __getattribute__(self, name):
+        print('调用了 __getattribute__ 方法')
+        return super(User, self).__getattribute__(name)
+
+
+if __name__ == '__main__':
+    user = User()
+    # 设置属性值，会调用 __setattr__
+    user.attr1 = True
+    # 属性存在,只有__getattribute__调用
+    user.attr1
+    try:
+        # 属性不存在, 先调用__getattribute__, 后调用__getattr__
+        user.attr2
+    except AttributeError:
+        pass
+    # __delattr__调用
+    del user.attr1

Code/Python10Code/com/twowater/mtest1.py

@@ -0,0 +1,9 @@
+#!/usr/bin/env python3
+# -*- coding: UTF-8 -*-
+
+class User(object):
+    pass
+
+
+if __name__ == '__main__':
+    print(dir(User()))

Code/Python10Code/com/twowater/mtest10.py

@@ -0,0 +1,38 @@
+#!/usr/bin/env python3
+# -*- coding: UTF-8 -*-
+
+class User(object):
+    def __init__(self, name='两点水', sex='男'):
+        self.sex = sex
+        self.name = name
+
+    def __get__(self, obj, objtype):
+        print('获取 name 值')
+        return self.name
+
+    def __set__(self, obj, val):
+        print('设置 name 值')
+        self.name = val
+
+
+class MyClass(object):
+    x = User('两点水', '男')
+    y = 5
+
+
+if __name__ == '__main__':
+    m = MyClass()
+    print(m.x)
+
+    print('\n')
+
+    m.x = '三点水'
+    print(m.x)
+
+    print('\n')
+
+    print(m.x)
+
+    print('\n')
+
+    print(m.y)

Code/Python10Code/com/twowater/mtest2.py

@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+# -*- coding: UTF-8 -*-
+
+
+class Meter(object):
+    def __init__(self, value=0.0):
+        self.value = float(value)
+
+    def __get__(self, instance, owner):
+        return self.value
+
+    def __set__(self, instance, value):
+        self.value = float(value)
+
+
+class Foot(object):
+    def __get__(self, instance, owner):
+        return instance.meter * 3.2808
+
+    def __set__(self, instance, value):
+        instance.meter = float(value) / 3.2808
+
+
+class Distance(object):
+    meter = Meter()
+    foot = Foot()
+
+
+if __name__ == '__main__':
+    d = Distance()
+    print(d.meter, d.foot)
+    d.meter = 1
+    print(d.meter, d.foot)
+    d.meter = 2
+    print(d.meter, d.foot)

Code/Python10Code/com/twowater/mtest3.py

@@ -0,0 +1,56 @@
+#!/usr/bin/env python3
+# -*- coding: UTF-8 -*-
+
+class FunctionalList:
+    ''' 实现了内置类型list的功能,并丰富了一些其他方法: head, tail, init, last, drop, take '''
+
+    def __init__(self, values=None):
+        if values is None:
+            self.values = []
+        else:
+            self.values = values
+
+    def __len__(self):
+        return len(self.values)
+
+    def __getitem__(self, key):
+        return self.values[key]
+
+    def __setitem__(self, key, value):
+        self.values[key] = value
+
+    def __delitem__(self, key):
+        del self.values[key]
+
+    def __iter__(self):
+        return iter(self.values)
+
+    def __reversed__(self):
+        return FunctionalList(reversed(self.values))
+
+    def append(self, value):
+        self.values.append(value)
+
+    def head(self):
+        # 获取第一个元素
+        return self.values[0]
+
+    def tail(self):
+        # 获取第一个元素之后的所有元素
+        return self.values[1:]
+
+    def init(self):
+        # 获取最后一个元素之前的所有元素
+        return self.values[:-1]
+
+    def last(self):
+        # 获取最后一个元素
+        return self.values[-1]
+
+    def drop(self, n):
+        # 获取所有元素，除了前N个
+        return self.values[n:]
+
+    def take(self, n):
+        # 获取前N个元素
+        return self.values[:n]

Code/Python10Code/com/twowater/mtest4.py

@@ -0,0 +1,56 @@
+#!/usr/bin/env python3
+# -*- coding: UTF-8 -*-
+
+class FunctionalList:
+    ''' 实现了内置类型list的功能,并丰富了一些其他方法: head, tail, init, last, drop, take'''
+
+    def __init__(self, values=None):
+        if values is None:
+            self.values = []
+        else:
+            self.values = values
+
+    def __len__(self):
+        return len(self.values)
+
+    def __getitem__(self, key):
+        return self.values[key]
+
+    def __setitem__(self, key, value):
+        self.values[key] = value
+
+    def __delitem__(self, key):
+        del self.values[key]
+
+    def __iter__(self):
+        return iter(self.values)
+
+    def __reversed__(self):
+        return FunctionalList(reversed(self.values))
+
+    def append(self, value):
+        self.values.append(value)
+
+    def head(self):
+        # 获取第一个元素
+        return self.values[0]
+
+    def tail(self):
+        # 获取第一个元素之后的所有元素
+        return self.values[1:]
+
+    def init(self):
+        # 获取最后一个元素之前的所有元素
+        return self.values[:-1]
+
+    def last(self):
+        # 获取最后一个元素
+        return self.values[-1]
+
+    def drop(self, n):
+        # 获取所有元素，除了前N个
+        return self.values[n:]
+
+    def take(self, n):
+        # 获取前N个元素
+        return self.values[:n]