history

nginx: send all requests to a single html page

自闭症网瘾萝莉.ら 提交于 2019-11-26 11:49:09
问题 Using nginx, I want to preserve the url, but actually load the same page no matter what. I will use the url with History.getState() to route the requests in my javascript app. It seems like it should be a simple thing to do? location / { rewrite (.*) base.html break; } works, but redirects the url? I still need the url, I just want to always use the same page. 回答1: I think this will do it for you: location / { try_files /base.html =404; } 回答2: Using just try_files didn't work for me - it

iPhone call log / history

≡放荡痞女 提交于 2019-11-26 11:45:50
I'm doing some research on the feasibility of an iPhone application, and can't find any indication in Apple's documentation that an iPhone app can read the call history of the phone, specifically the number called, when, and the duration... I also need the same information for SMS. First of all: I've done my research and googled around, searched around on this site! I know this question had been asked a lot of times before, and the answer was always: "It can't be done" (at least not on a non-jailbroken iPhone). I searched the API including Core Telephony and didn't find anything myself either.

Historical reason behind different line ending at different platforms

喜夏-厌秋 提交于 2019-11-26 11:16:21
问题 Why did DOS/Windows and Mac decide to use \\r\\n and \\r for line ending instead of \\n? Was it just a result of trying to be \"different\" from Unix? And now that Mac OS X is Unix (-like), did Apple switch to \\n from \\r? 回答1: DOS inherited CR-LF line endings (what you're calling \r\n, just making the ascii characters explicit) from CP/M. CP/M inherited it from the various DEC operating systems which influenced CP/M designer Gary Kildall. CR-LF was used so that the teletype machines would

What's the motivation behind having copy and direct initialization behave differently?

人走茶凉 提交于 2019-11-26 10:41:53
问题 Somewhat related to Why is copy constructor called instead of conversion constructor? There are two syntaxes for initialization, direct- and copy-initialization: A a(b); A a = b; I want to know the motivation for them having different defined behavior. For copy initialization, an extra copy is involved, and I can\'t think of any purpose for that copy. Since it\'s a copy from a temp, it can and probably will be optimized out, so the user can\'t rely on it happening - ergo the extra copy itself

Python绘制神经网络精度与损失曲线

时光怂恿深爱的人放手 提交于 2019-11-26 10:40:47
1 """ python绘制神经网络训练精度与损失 """ 2 3 # 导入相应包 4 from matplotlib import pyplot as plt 5 6 # 构造绘图函数 7 def drow(history): 8 epochs = range(1, len(history['loss']) + 1) 9 plt.plot(epochs, history['loss'], 'bo', label='Training loss') 10 plt.plot(epochs, history['val_loss'], 'b', label='Validation loss') 11 plt.title('Training and Validation loss') 12 plt.xlabel('Epochs') 13 plt.ylabel('Loss') 14 plt.legend() 15 16 plt.imsave('E:/acc_and_loss/Training and Validation loss.jpg') 17 18 plt.figure() 19 epochs = range(1, len(history['acc']) + 1) 20 plt.plot(epochs, history['acc'], 'bo', label='Training acc'

When was the NULL macro not 0?

馋奶兔 提交于 2019-11-26 10:34:17
I vaguely remember reading about this a couple of years ago, but I can't find any reference on the net. Can you give me an example where the NULL macro didn't expand to 0? Edit for clarity: Today it expands to either ((void *)0) , (0) , or (0L) . However, there were architectures long forgotten where this wasn't true, and NULL expanded to a different address. Something like #ifdef UNIVAC #define NULL (0xffff) #endif I'm looking for an example of such a machine. Update to address the issues: I didn't mean this question in the context of current standards, or to upset people with my incorrect

SecurityError: The operation is insecure - window.history.pushState()

杀马特。学长 韩版系。学妹 提交于 2019-11-26 08:15:31
问题 I\'m getting this error in Firefox\'s Console: SecurityError: The operation is insecure and the guilty is HTML5 feature: window.history.pushState() when I try to load something with AJAX. It is supposed to load some data but Javascript stops executing on error. I\'m wondering why this may be happening. Is this some server misconfiguration? Any help would be appreciated. UPDATE: Yes, it was a server error with domain name not matching: http://en.wikipedia.org/wiki/Same-origin_policy 回答1: Make

Original purpose of <input type=“hidden”>? [closed]

◇◆丶佛笑我妖孽 提交于 2019-11-26 07:59:35
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . I am curious about the original purpose of the <input type=\"hidden\"> tag. Nowadays it is often used together with JavaScript to store variables in it which are sent to the server and things like that. HTML 2.0 was released in November 1995, containing already the specification for input type=\"hidden\"

python-爬虫-史书典籍

心已入冬 提交于 2019-11-26 04:32:13
import requests import os from lxml import html import time def get_title_url(tree): '''一级 获取标题''' # 史书典籍 # 格式:/book/sanguoyanyi.html History_book_url_list = tree.xpath("//div[@class='index-li'][3]/ul/li/a/@href") # 格式:三国演义 History_book_name_list = tree.xpath("//div[@class='index-li'][3]/ul/li/a/text()") return History_book_url_list,History_book_name_list def get_article_url(tree): '''二级 获取文章标题''' # 三国演义典籍 # 格式:/book/sanguoyanyi/1.html book_url_list = tree.xpath("//div[@class='book-mulu']/ul/li/a/@href") # 格式:第一回·宴桃园豪杰三结义 斩黄巾英雄首立功 book_name_list = tree.xpath("//div[@class='book-mulu']/ul/li/a

Why do stacks typically grow downwards?

*爱你&永不变心* 提交于 2019-11-26 02:52:21
问题 I know that in the architectures I\'m personally familiar with (x86, 6502, etc), the stack typically grows downwards (i.e. every item pushed onto the stack results in a decremented SP, not an incremented one). I\'m wondering about the historical rationale for this. I know that in a unified address space, it\'s convenient to start the stack on the opposite end of the data segment (say) so there\'s only a problem if the two sides collide in the middle. But why does the stack traditionally get