但是如果,你这样定义类,不实现__call__(): classPerson(object):def__init__(self, name, gender): self.name =name self.gender =gender >>> p=Person('Bob','male') >>> p <__main__.Person object at 0x1081a5e90> >>> p('Tim') Traceback (most recent call last): File "<stdin>",...
Traceback (most recent call last): File "C:/Users/test/Desktop/test01.py", line 18, in <module> c() File "C:/Users/test/Desktop/test01.py", line 15, in c b() File "C:/Users/test/Desktop/test01.py", line 10, in b a() File "C:/Users/test/Desktop/test01.py", line 5...
# -*- coding: utf-8 -*-importsyssys.path.extend(['/home/charlie/ssd/toshan'])fromstock_research.data_functionsimport*# 先import自己的包,如果重复需要用比如pandas,后面再import,之前的话都是灰色了fromdatetimeimportdatetimeimportmatplotlib.pyplotaspltimportosfromcollectionsimportOrderedDict# python 3.7 ...
classTest:def__call__(self, *args, **kwargs):print('开始call') test1=Test() test1()#执行的Test下面的__call__print(Test())#执行的谁的__call__???返回实例
class Person(object): def __init__(self, name): self.__name = name def get_name(self): return self.__name 在上面的定义,name是实例的私有属性,从外部是无法访问的,而get_name(self) 就是一个实例方法,在实例方法里面是可以操作私有属性的,注意,它的第一个参数是self。
File "<pyshell#49>", line 2, in <module> data = open("missing.txt") FileNotFoundError: [Errno 2] No such file or directory: 'missing.txt' During handling of the above exception, another exception occurred: Traceback (most recent call last): ...
sendfile(2) is a UNIX system call which provides a “zero-copy” way of copying data from one file descriptor (a file) to another (a socket). Because this copying is done entirely within the kernel, sendfile(2) is more efficient than the combination of “file.read()” and “socket....
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---KeyboardInterrupt Traceback (most recent call last)<ipython-input-1-f7c25be91afa> in <module> 1 # 死循环 2 while True: ---> 3 print("我爱赵辰") /opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/ipykernel/iostream.py in write(self, string) 398 is_child = (...
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