[已解决]请问这里最后一行代码为啥没有调动property里面的doc?

杨东明 · 发表于 2021-9-14 15:55:23

class Foo:
def __init__(self,num):
self.age = num
@property
def get(self):
return self.age
@get.setter
def get(self,num1):
self.age = num1
class temp:
def __init__(self,time):
self.count = time
def get(self):
return self.count
def set(self,time1):
self.count = time1
def delete(self):
del self.count
print ('已删除')
p = property(get,set,delete,'修饰符property的使用')
#a = Foo(10)
#print (a.get)
#a.get = 20
#print (a.get)
b = temp(5)
print (b.p)
b.p = 10
print (b.p)
print (b.__dict__)
del b.p
print (b.__dict__)
b.p.__doc__

复制代码

最佳答案

月排行榜 / 总排行榜

阿奇_o

2021-9-14 15:55:24

你用类名.p.__doc__ 就行了。。

In [1]: class temp:
...: def __init__(self,time):
...: self.count = time
...: def get(self):
...: return self.count
...: def set(self,time1):
...: self.count = time1
...: def delete(self):
...: del self.count
...: print ('已删除')
...:
...: p = property(get,set,delete,'修饰符property的使用')
...:
In [2]: t = temp()
In [3]: t = temp(60)
In [4]: t.p
Out[4]: 60
In [5]: t.__doc__
In [6]: temp.__doc__
In [7]: temp.p.__doc__
Out[7]: '修饰符property的使用'

复制代码

# 至于为什么是这样子？我也不想去进一步了解，哈哈，反正这样的装饰器的__doc__特性，几乎用不上。更常用的是直接用@property

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阿奇_o · 发表于 2021-9-14 15:55:24

你用类名.p.__doc__ 就行了。。

In [1]: class temp:
...: def __init__(self,time):
...: self.count = time
...: def get(self):
...: return self.count
...: def set(self,time1):
...: self.count = time1
...: def delete(self):
...: del self.count
...: print ('已删除')
...:
...: p = property(get,set,delete,'修饰符property的使用')
...:
In [2]: t = temp()
In [3]: t = temp(60)
In [4]: t.p
Out[4]: 60
In [5]: t.__doc__
In [6]: temp.__doc__
In [7]: temp.p.__doc__
Out[7]: '修饰符property的使用'

复制代码

# 至于为什么是这样子？我也不想去进一步了解，哈哈，反正这样的装饰器的__doc__特性，几乎用不上。更常用的是直接用@property

Twilight6 · 发表于 2021-9-16 12:36:17

b.p 对象都被你 del 删除了，再对该对象 __doc__ 肯定会报错的

把 b.p.__doc__ 代码放再 del b.p 前一行即可

杨东明 · 发表于 2021-9-16 20:17:57

Twilight6 发表于 2021-9-16 12:36
b.p 对象都被你 del 删除了，再对该对象 __doc__ 肯定会报错的

把 b.p.__doc__ 代码放再 del b.p 前一 ...

class temp:
def __init__(self,time):
self.count = time
def get(self):
return self.count
def set(self,time1):
self.count = time1
def delete(self):
del self.count
print ('已删除')
p = property(get,set,delete,'修饰符property的使用')
#a = Foo(10)
#print (a.get)
#a.get = 20
#print (a.get)
b = temp(5)
#print (b.p)
#b.p = 10
#print (b.p)
#print (b.__dict__)
#del b.p
#print (b.__dict__)
print (b.p.__doc__)

复制代码

我改成运行后返回：
int([x]) -> integer
int(x, base=10) -> integer

Convert a number or string to an integer, or return 0 if no arguments
are given.  If x is a number, return x.__int__().  For floating point
numbers, this truncates towards zero.

If x is not a number or if base is given, then x must be a string,
bytes, or bytearray instance representing an integer literal in the
given base.  The literal can be preceded by '+' or '-' and be surrounded
by whitespace.  The base defaults to 10.  Valid bases are 0 and 2-36.
Base 0 means to interpret the base from the string as an integer literal.
>>> int('0b100', base=0)
4

没懂为啥会返回这个，我想让他返回property里面我输入的文本

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[已解决]请问这里最后一行代码为啥没有调动property里面的doc?

最佳答案

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