how to splice cat5

from:http://blog.csdn.net/jasonliuvip/article/details/22600569Linux Network Programming IX: Splice function, efficient 0 copiesRecently looking at "Linux High Performance Server Programming", here to do a diary to motivate themselves, while sharing in need of friends.1. Splice function[CPP]View PlainCopy #include ssize_t Splice (int fd_in, loff_t *

ArticleDirectory Syntax Return Value Description Example 1 Example 2 Example 3 Splice, please note that splice is not a split, although the two looks very similar but not a thing. Splice and not split can be used for Array Operations. First, let's talk about split. Split Splits a string based on a certain identifier and returns

of the linked list as the linked list. Instead, it calls the distance method to obtain the length. So what does this distance method do? template Another layer of _ distance is blocked to see what it has done? template It turns out to be traversal!Why do we have to traverse all the linked list elements to obtain the length of a linked list, instead of using a variable to represent it? Why is the SGI idea of designing a list so different (Microsoft's STL implementation does not have the eff

Splice in JavaScript is mainly used to operate arrays in js, including deleting, adding, and replacing arrays. This article describes the detailed usage of the splice method in JavaScript. For more information, see splice in JavaScript. It is mainly used to operate arrays in js, including deleting and adding, replacement. Note: This method will change the origin

from:http://www.jquerycn.cn/a_10447The splice () method in JavaScript is a strong array method that has many uses.The main purpose of splice () is to insert items into the middle of the array.There are 3 ways of doing this:Delete--You can delete any number of items, just specify 2 parameters: the location of the first item to delete and the number of items to delete.For example,

Splice is a newly added zero-copy data sending function in linux2.6 kernel. It is mainly used to send data to or receive data from the pipeline. Similar to splice, the zero copy sending function also has sendfile. The difference is that sendfile sends data to the peer end through socket. The so-called zero copy refers to (compared with the traditional read/write mode), in the process of data transmission, t

First, splice grammar Arrayobject.splice (start, deletecount,item1,....., ItemX) 1. Parameter description start: Required. Specifies where to add/remove elements from. This parameter is the subscript that begins inserting and/or deleting an array element, which must be a number.deletecount: Required. Specifies how many elements should be deleted. Must be a number, but it can be "0". If this parameter is not specified, all elements from index start to

Copy codeThe Code is as follows:Array. prototype. ArrayInsertAfter = function (Num, obj){Var tempArr = new Array ();Var l = this. length;For (var I = 0; I {TempArr. push (this. shift ());}L = tempArr. length;For (var I = 0; I {This. push (tempArr. shift ());If (I = Num){This. push (obj );}}Return this;}How to use JavaScript splice ()Definition and usageThe splice () method is used to insert, delete, or repl

The splice () method adds or removes an item from an array, and then returns the item that was deleted. The method changes the original array.Grammar:Arrayobject.splice (index,howmany,item1,....., ItemX)Index required. An integer that specifies the location of the Add/remove item, using a negative number to specify the position from the end of the array.Howmany required. The number of items to delete. If set to 0, the item is not deleted.Item1, ..., I

The splice () method in JavaScript is a strong array method that has many uses.The main purpose of splice () is to insert items into the middle of the array.There are 3 ways of doing this:Delete--You can delete any number of items, just specify 2 parameters: the location of the first item to delete and the number of items to delete.For example, splice (0,2) delet

From: http://blog.chinaunix.net/u/9861/showart_727153.html Usage of Perl function Splice: Splice has four usage options: 1. splicearray, offset, length, list 2. splicearray, offset, Length 3. splicearray, offset 4. splicearray Description: removes the elements specified by offset and length in the array, and replaces the elements in the list. In the context of the list, the function returns the overflow ar

position of this parameter to the end of the current array. If there are two parameters, this method returns the item between the start position and the end position (but does not include the item at the end position ). Note that the slice () method does not affect the original array. As follows: var colors = ["red", "green", "blue", "yellow", "purple"];var colors2 = colors.slice(1);var colors3 = colors.slice(1, 4);alert(colors2); //green,blue,yellow,purplealert(colors3); //green,blue,y

List: splice implements list concatenation. Delete part or all of the elements in the source list and insert them to the destination list. The function has the following three declarations: Void splice (iterator position, list Void splice (iterator position, list Void splice (iterator position, list Func

There are many ways to process arrays. splice () is the most powerful. It can be used to insert, delete, or replace array elements. Here is a one-to-one introduction! 1. Delete-used to delete an element. There are two parameters: the first parameter (the location of the first item to be deleted) and the second parameter (the item to be deleted ). There are many ways to process arrays. splice () is the most

Definition and usageThe splice () method is used to insert, delete, or replace elements in an array. SyntaxArrayObject. splice (index, howmany, element1,..., elementX)Parameter descriptionIndex is required. Specifies where to add/delete elements. This parameter is the subscript of the array element that begins to insert or delete. It must be a number.Howmany is required. Specifies how many elements should b

Definition and usageThe splice () method is used to insert, delete, or replace elements in an array.SyntaxArrayObject. splice (index, howmany, element1,..., elementX)Parameter descriptionIndex is required. Specifies where to add/delete elements.This parameter is the subscript of the array element that begins to insert or delete. It must be a number.Howmany is required. Specifies how many elements should be

Splice for the use of arrays, to insert a new parameter to the array, return a new array, and also modify the original array, how to understand this meaning, such as the current array of arr = [[+], now add a new string to the array ' Thomson ', such as Arr.splice (1, ' Thomson '), get the new array [1, ' Thomson ', 2,3], so all can, splice can be arbitrarily inserted anywhere in the array, explaining the

Splice ()Features: Delete, insert and replace can be implemented.Delete: You can delete any number of items by specifying only 2 parameters: the location of the first item to delete and the number of items to delete.For example: Splice (0,2) deletes the first 2 items in the array.Insert: You can insert any number of items to a specified location, providing only 3 parameters: The starting position, 0 (the it

JS, delete an element in the array by valueArray.prototype.indexOf = function (val) {for (var i = 0; i if (this[i] = = val) return i;}return-1;};Array.prototype.remove = function (val) {var index = This.indexof (val);if (Index >-1) {This.splice (index, 1);}};Such as:var array = [1, 2, 3, 4, 5];Array.remove (3);JavaScript Splice () method definition and usageThe splice () method adds/deletes an item to/from

During the interview, if the examiner asks you to use JavaScript to insert, delete, and replace array elements. If you do not know the method used by Array. prototype. splice, the score may be deducted. Using the built-in splice method of javascript array type, you can insert, delete, and replace array elements with only one line of code. Method signature: Array. prototype.