array count

This article focuses on the question of whether or not to be aware of Nsarray.Some inexperienced developers, when judging whether an array is empty, will simply write:if (array! = nil)This form, or:if (Array.count! = 0)This form.In fact, strictly

Function quick_sort ($ array ){If (count ($ array) $ Key = $ array [0];Echo $ key;$ Left_arr = array ();$ Right_arr = array ();For ($ I = 1; $ I If ($ array [$ I] Else $ right_arr [] = $ array [$ I];}$ Left_arr = quick_sort ($ left_arr );$ Right_arr

1."Fps_images.png" is cocos2d used to display the frame rate, that is, the number of frames displayed per second. You cannot delete or modify this image.   2.Cocos2d memory management method: 1)Call the static method for Object Instantiation:

Problem: Put the elephant in the refrigerator I. process-oriented Focus on business functions 1. open the refrigerator door 2. Put the elephant in the refrigerator 3. Close the refrigerator door Ii. Object-oriented Focus on functional encapsulation

Http://www.cnblogs.com/zhjp11/archive/2010/02/26/1674227.html Today, when we look at algorithm analysis, we can see a problem where we can find the largest K value in a pile of data. The name is: design a group of N numbers, and determine the

In smarty, php built-in functions are called. I believe many people do not very well understand smarty's important function. They can call php built-in functions in the smarty template. In smarty, php built-in functions are called. I believe many

The integer problem described in this article is not a problem with MongoDB, but rather a php-driven problem: MongoDB itself has two integer types: 32-bit integers and 64-bit integers, but older PHP drivers, regardless of whether the operating

You are welcome to add the mistakes that are easy to make during Yii development. You are welcome to add the mistakes that are easy to make during Yii development.Forget echo In the following view output: Edit item: Label;?> You may spend a

During the development process, a large amount of data needs to be loaded. For example, the network may be frequently requested to display images. We cannot refresh the table view after loading all the images !!   How can this problem be solved? I

IOS-simple Tom code # Import @ Interface ViewController: UIViewController // Tom Image view@ Property (weak, nonatomic) IBOutlet UIImageView * tomcatImageView; // Animation operation-(IBAction) animationAction :( UIButton *) sender; @ End Bytes ---

IOS CLLocationManager positioning, iOS 8 Note This afternoon, I started to use the built-in Location of IOS. I read a lot of tutorials on the Internet and run the sample code directly, but I still cannot get the location. The Code is as

IOS gets the current city1. Import the header file # Import 2. Implement the location protocol CLLocationManagerDelegate3. Define positioning attributes @ Property (nonatomic, retain) CLLocationManager * locationManager; 4. Start locating -(Void)

Yii database addition, modification, and deletion operations Summary This article summarizes the operations related to adding data, modifying data, and deleting data in yii. I just learned a few days and only recorded some data. I will continue to

How to get the length of an array in SmartyHypothesis:An array is assigned to Smarty. Assume that the division of Smarty is '{' and '}'.In many materials, we can see that when the length of the array is required in Smarty, it can be used after the

Copy codeThe Code is as follows: Var count = 0; // counter Var limit = new Array (); // used to record which menus are currently displayed Var countlimit = 1; // you can specify the number of menus that can be opened at the same time. Function

According to a BF interpreter, which is readily written on Wikipedia, the input has two parameters-the program code, the input stream, and the return content as the output stream. The input and output are all strings. character

Basic operations of file systems The code is as follows: Error_reporting (2047 );/** Class I/O (snkedevil completed 03.25.04) (v1.0.0.0)** [Description]* This class is used to process the file system.** [Function]* *** List_dir ($ dir_path );*

: This article describes how to use PHP to retrieve a specified number of non-repeated child sets in a specified array. For more information about PHP tutorials, see. Method 1: $ Arrn = array (); $ arr = range (); // The specified array $ arri =

Before you begin, it is highly recommended to take a look at Xunsearch's official documentation Xunsearch Introduction Xunsearch is a high-performance, full-featured full-text retrieval solution.Xunsearch is designed to help average

The integer problem mentioned in this article is not a MongoDB problem, but a PHP-driven problem. MongoDB itself has two integer types: 32-bit integer and 64-bit integer, however, the old PHP driver treats all integers as 32-bit integers regardless