以下代码均采用Python 3.5.2 编写。新建一个名为HelloWorld.py的文件，当然名称无所谓，输入以下代码：
#func return def line_conf(): b=15 def line(x): return 2*x+b b=5 return line my_line=line_conf() print(my_line(5)) #closure print(my_line.__closure__) print(my_line.__closure__[0].cell_contents) def line_conf2(a,b): def line(x): return a*x+b return line line1=line_conf2(1,1) line2=line_conf2(4,5) print(line1(1)) print(line2(1)) #decorator def decorator_demo(old_function): def new_function(a,b): print("input", a, b) return old_function(a,b) return new_function @decorator_demo def square_sum(a,b): return a**2+b**2 @decorator_demo def cubic_sum(a,b): return a**3+b**3 print(square_sum(2,1)) print(cubic_sum(2,1)) def pre_str(pre=""): def decorator(old_function): def new_function(a,b): print(pre+" input ",a, b) return old_function(a,b) return new_function return decorator @pre_str("^_^") def square_diff(a,b): return a**2-b**2 print(square_diff(2,1)) def decorator_class(SomeClass): class NewClass(object): def __init__(self, age): self.total_display=0 self.wrapped=SomeClass(age) def display(self): self.total_display+=1 print("total display", self.total_display) self.wrapped.display() return NewClass @decorator_class class Bird(object): def __init__(self, age): self.age=age def display(self): print("My age is ",self.age) eagle_lord=Bird(5) for i in range(3): eagle_lord.display() #lambda lambda_sum = lambda x,y: x+y print(lambda_sum(1,2)) #map data_list=[1,3,5,6] result=map(lambda x: x+3, data_list) for i in result: print(i) data_list1=[1,3,5,7] data_list2=[2,4,6,8] result=map(square_sum,data_list1,data_list2) for i in result: print(i)读懂以上代码即可轻松掌握装饰器、map函数等基本命令使用方法，方便起见，可以考虑将尚未读到的代码注释掉，一段段阅读。
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