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c++ 写日志通用类，可设置日志级别 - C/C++ - 清泛网 - 专注C/C++及内核技术
...。代码经过较长时间的测试，可用性高。Logger.h
#ifndef __LOGGER_H_
#define __LOGGER_H_
#include <iostream>
#include <atlstr.h>
#pragma warning(disable:4996)
#define LEVEL_FATAL 0
#define LEVEL_ERROR 1
#define LEVEL_WARN 2
#define LEVEL_INFO 3
#define LEVEL_VERBOSE...
TypeError: method() takes 1 positional argument but 2 were given
...
In Python, this:
my_object.method("foo")
...is syntactic sugar, which the interpreter translates behind the scenes into:
MyClass.method(my_object, "foo")
...which, as you can see, does indeed have two arguments - it's just that the first o...
Python name mangling
...do not bother about it. Instead of writing:
class Stack(object):
def __init__(self):
self.__storage = [] # Too uptight
def push(self, value):
self.__storage.append(value)
write this by default:
class Stack(object):
def __init__(self):
self.storage = [] # No...
Sending a JSON to server and retrieving a JSON in return, without JQuery
...ng and receiving data in JSON format using POST method
//
var xhr = new XMLHttpRequest();
var url = "url";
xhr.open("POST", url, true);
xhr.setRequestHeader("Content-Type", "application/json");
xhr.onreadystatechange = function () {
if (xhr.readyState === 4 && xhr.status === 200) {
...
How to resize an image with OpenCV2.0 and Python2.6
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How to remove padding around buttons in Android?
...;?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/notifications_toggle_on"
android:state_checked="true"/>
<item android:drawable="@drawable/n...
How to convert SQL Query result to PANDAS Data Structure?
...
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Get all object attributes in Python? [duplicate]
...w attributes inherited through a metaclass, or it may be overridden with a __dir__ method.
– SingleNegationElimination
Jul 30 '11 at 23:11
7
...
Flatten an Array of Arrays in Swift
...riate for the use described in the question (flattening a 2D array to 1D). compactMap is explicitly for removing nil items from a sequence, as a variant of flatMap once did.
– Jim Dovey
Aug 8 '19 at 22:29
...
How do you set your pythonpath in an already-created virtualenv?
...nv_path_extensions.pth
Documentation on virtualenvwrapper can be found at http://virtualenvwrapper.readthedocs.org/en/latest/
Specific documentation on this feature can be found at
http://virtualenvwrapper.readthedocs.org/en/latest/command_ref.html?highlight=add2virtualenv
...