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IOS development-improves APP smoothness (stock quotes) and iosapp In the past few days, I made an app to view the stock market. After the completion, when there are many K lines, the app's reaction to kneading and dragging gestures is not smooth,

I. single quotation marks and double quotation marks are used in PHP's data storage process. That is, when storing data in the database, you must note that single and double quotation marks are escaped; Let's talk about several PHP functions: 1.

1 references(1) Introduction to real-time database, http://blog.csdn.net/liqfyiyi/article/details/6862886(2) Real-time database introduction and comparison, http://www.cnblogs.com/zljini/archive/2006/05/17/402422.html(3) Real-time database

53 details of PHP code optimization. Use single quotes instead of double quotes to include strings, which is faster. Because PHP will search for variables in strings enclosed by double quotes, but not in single quotes. Note: Only echo can use single

PHP Tutorial Configuration Chinese Narration Let's see what you see, php.ini. [PHP] ;;;;;;;;;;;; WARNING;;;;;;;;;;;;; This is the default settings file for new PHP installations.; By default, PHP installs itself with a configuration suitable for;

These methods are usually used when I find a collection on the Internet, OH, I declare in advance to avoid misunderstanding! First, CSS HACK The following two methods can solve almost all hack today. 1,!important With the support of IE7

1. The difference between double quotation marks and single quotation marks Double quote explanatory variable, single quote not explanatory variable Double quotation marks in single quotes, where there are variables in single quotes,

The first chapter is optimized for system calls too muchMy optimization for syscall calls too many problems, so use Strace to trace Apache for analysis. 1. Apache2ctl-x &Start the httpd process with the-X (debug) parameter, which starts only 1

1, for many code files said, especially contains a lot of include files (include or require). They need to spend more time and parse and generate intermediate code. 2, even if the PHP code file has not changed, the implementation process will be

Php code optimization recommendations from: http://blog.csdn.net//wgw335363240/article/details/41844879 Use single quotes instead of double quotes to include strings, which is faster. Because PHP will search for variables in strings enclosed by