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最近都在学python，但是总不得要领，学得十分缓慢，想靠做题提高熟悉度，但是奈何总跟不上答案的节奏。唯一把题目记下来，写一下blog，一个个弄懂。给你一字典a，如a={1:1,2:2,3:3}，输出字典a的key，以','连接，如‘1,2,3'。要求key按照字典序升序排列(注意key可能是字符串）。例如：a={1:1,2:2,3:3}, 则输出：1,2,3答案print(",".join(...

业务代码import sysfrom PyQt5.QtWidgets import *from PyQt5.QtCore import *from PyQt5.QtGui import *from MainWinSignalSlog02 import Ui_MainWinSignalSlog02class MyMainWindow(QMainWindow, Ui_Mai...

#这里加不加[QAction]效果都一样，那加了是什么用意？#file.triggered[QAction].connect(self.clickAction)file.triggered.connect(self.clickAction)import sysfrom PyQt5.QtGui import *from PyQt5.QtCore import *from Py...

import sysfrom PyQt5.QtGui import *from PyQt5.QtWidgets import *from PyQt5.QtCore import *class demoTable(QWidget): def __init__(self): super(demoTable, self).__init__() self...

import sysfrom PyQt5.QtCore import *from PyQt5.QtGui import *from PyQt5.QtWidgets import *#注意父级是QTabWidgetclass demoQTabWidget(QTabWidget): def __init__(self): super(demoQTabWidget,...

import sysfrom PyQt5.QtWidgets import *from PyQt5.QtGui import *from PyQt5.QtCore import *#父级又是QWidget，不清楚什么时候是QWidget什么时候是其它class demoStackedWidget(QWidget): def __init__(self): su...

import sysfrom PyQt5.QtCore import *from PyQt5.QtGui import *from PyQt5.QtWidgets import *class demoQDockWidget(QMainWindow): def __init__(self): super(demoQDockWidget, self).__init_...

import sysfrom PyQt5.QtWidgets import *from PyQt5.QtCore import *from PyQt5.QtGui import *class demoQMultipleDoc(QMainWindow): count = 0 def __init__(self): super(demoQMultipleDo...

import sysfrom PyQt5.QtWidgets import *from PyQt5.QtCore import *from PyQt5.QtGui import *class demoQScrollBar(QWidget): def __init__(self): super(demoQScrollBar, self).__init__() ...

import sysfrom PyQt5.QtSql import *from PyQt5.QtWidgets import *from PyQt5.QtGui import *from PyQt5.QtCore import *class demoWin(QDialog): def __init__(self): super(demoWin, self)....

import sysfrom PyQt5.QtGui import *from PyQt5.QtWidgets import *from PyQt5.QtCore import *from PyQt5.QtSql import *import redef createDataBase(): db = QSqlDatabase.addDatabase('QSQLITE') ...

import sysfrom PyQt5.QtWidgets import *from PyQt5.QtCore import *from PyQt5.QtGui import *class demoQMenuBar(QMainWindow): def __init__(self): super(demoQMenuBar, self).__init__() ...

import sysfrom PyQt5.QtGui import *from PyQt5.QtCore import *from PyQt5.QtWidgets import *class demoQDateTimeEdit1(QWidget): def __init__(self): super(demoQDateTimeEdit1, self).__ini...

Python ord() 函数 Python 内置函数描述ord() 函数是 chr() 函数（对于8位的ASCII字符串）或 unichr() 函数（对于Unicode对象）的配对函数，它以一个字符（长度为1的字符串）作为参数，返回对应的 ASCII 数值，或者 Unicode 数值，如果所给的 Unicode 字符超出了你的 Python 定义范围，则会引发一个 TypeError 的异常。语...

python真的神奇，直接a, b = [1, 2]这样就可以取出列表中的元素。。服>>> a, b = [1, 2]>>> a1>>> b2>>>

import urllib.requestimport urllib.parseimport jsonimport timeimport randomimport hashliburl = "http://fanyi.youdao.com/translate_o?smartresult=dict&smartresult=rule"while True: ...

准备打算做一个项目，可能用到这个模块，就先照搬官网，做个翻译官网地址：https://mutagen.readthedocs.io/en/latest/Mutagen is a Python module to handle audio metadata. It supports ASF, FLAC, MP4, Monkey’s Audio, MP3, Musepack, Ogg Opu...

原文：https://mutagen.readthedocs.io/en/latest/user/gettingstarted.htmlThe File functions takes any audio file, guesses its type and returns a FileType instance or None. File函数可以输入任意音频文件，然后分析其可能的类型...

原文：https://mutagen.readthedocs.io/en/latest/user/classes.htmlClass OverviewThe main notable classes in mutagen are FileType, StreamInfo, Tags, Metadata and for error handling the MutagenError exc...

#这个例子的变量不用传递，直接被函数调用?import sysfrom PyQt5.QtWidgets import *from PyQt5.QtCore import *from PyQt5.QtGui import *global secsec = 0class myThread(QThread): trigger = pyqtSignal() def ...

import sysfrom PyQt5.QtGui import *from PyQt5.QtCore import *from PyQt5.QtWidgets import *import timeclass demoProcessEvents(QWidget): def __init__(self): super(demoProcessEvents, ...

import osimport sysfrom PyQt5.QtGui import *from PyQt5.QtWidgets import *from PyQt5.QtCore import *class demoQClipboard(QDialog): def __init__(self): super(demoQClipboard, self).__i...

import sysfrom PyQt5.QtWidgets import *from PyQt5.QtCore import *from PyQt5.QtGui import *class demoQClalendar(QWidget): def __init__(self): super(demoQClalendar, self).__init__() ...

import requestsimport sysfrom checkCityWeather import *from PyQt5.QtCore import *from PyQt5.QtWidgets import *from PyQt5.QtGui import *#原书api已失效rootPath = "http://t.weather.sojson.com/api/wea...