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Remove all special characters from a string [duplicate]
...;
}
function cleanString($text) {
$utf8 = array(
'/[áàâãªä]/u' => 'a',
'/[ÁÀÂÃÄ]/u' => 'A',
'/[ÍÌÎÏ]/u' => 'I',
'/[íìîï]/u' => 'i',
'/[éèêë]/u' => 'e',
'/[ÉÈÊË]/u' => 'E...
SliderVertical拓展：将滑块组件旋转 90º - App Inventor 2 拓展 - 清泛IT...
将滑块组件旋转 90º，效果如下：
[hide]来源：https://community.appinventor.mi ... o-ranges-free/29465
http://kio4.com/appinventor/294K_extension_crear_Deslizador.htm
[/hide]
谢谢谢谢谢谢谢谢分享
Characters allowed in a URL
...;yxcvbnm,.-°!"§$%&/()=? `QWERTZUIOPÜ*ASDFGHJKLÖÄ\'>YXCVBNM;:_²³{[]}\|µ@€~
These were not encoded:
^0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ,.-!/()=?`*;:_{}[]\|~
Not encoded after urlencode():
0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ....
linux 下巧妙使用squid代理服务器 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...同时可以作为一个防火墙，隔离内网与外网，并且能提供监控网络和记录传输信息的功能，加强局域网的安全性等。它的主要作用有以下几点。
1．共享网络
2．加快访问速度，节约通信带宽
3．防止内部主机受到攻击
4．...
Case insensitive XPath contains() possible?
...ÇÅÏÕÑŒ', 'abcdefghijklmnopqrstuvwxyzäöüéèêàáâòóôùúûçåïõñœ'),'foo')]");
– Stefan Steiger
Nov 29 '13 at 9:34
1
...
What does the ??!??! operator do in C?
...if (x || y) { a[i] = '\0'; } looking like if (x öö y) ä aÄiÅ = 'Ö0'; å in the wrong charset.
– Ilmari Karonen
Oct 20 '11 at 13:36
9
...
Android微信智能心跳方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...定期的心跳成功率，上报给后台。后台可以按地区分网络监控这个指标的波动，并且后台可以根据不同的波动，动态调整某区域特定网络下可选的心跳区间。
5.2 其他影响TCP寿命的因素
是否有遗漏的因素？欢迎各位联系我反馈...
Designing function f(f(n)) == -n
...
@a1kmm: Sorry, -2³² above should have been -2³¹. Anyway, the case where f(0)≠0 (and so f(0)=-2³¹) is actually the easier case, as we showed these two are disconnected from the rest. The other case we need to consider is that f(0)=0, b...
Setting the correct encoding when piping stdout in Python
...at you receive, and encode what you send.
# -*- coding: utf-8 -*-
print u"åäö".encode('utf-8')
Another didactic example is a Python program to convert between ISO-8859-1 and UTF-8, making everything uppercase in between.
import sys
for line in sys.stdin:
# Decode what you receive:
lin...
构建高并发高可用的电商平台架构实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...发，对请求的处理设计因重发因素需要考虑幂等性。
4) 监控
监控也是提高整个平台可用性的一个重要手段，多平台进行多个维度的监控；模块在运行时候是透明的，以达到运行期白盒化。
4. 伸缩
1) 拆分
拆分包括对业...