statistics on yourLinuxSystem ofHistoryhistory to draw your favorite use of the former10a commandmethod One:awk Array Method[[Email protected] ~]# history |awk ' {H[$2]++}end{for (key in H) Printkey,h[key]} ' |sort-rnk2|headawk 279ll 78cat 66cd 41ls
important data Types Dict and setDict Find value by key (key and Value Association)The curly braces {} indicate that this is a dict, and then follow the Key:value and write them out. The last one key:value is good to omit.Note: A single-element
Dragging and dropping an element darg&drop is an important feature of Windows (window) when it is published. Now we have to implement in the browser, how to do? Let's take a look at the basic examples:
Copy Code code as follows:
What is called asynchronous, what is Ajax. Let's not talk about XMLHttpRequest. Asynchronous is the Front page Web page Special effectiveness Call back-end method. So that there is no refresh. So called Ajax. Here we talk about two ways
1. Netstat commandNetstat is a program that accesses the state of the network connection and its associated information in the kernel, and it provides reports on TCP connections, TCP and UDP snooping, and process memory management.Netstat is a
#coding: UTF-8Import OSImport SysImport Collections?#文件内容如下 (GET)#[2018 Chinese New Year statistics] users (123456) obtained Fu words (0) (1)??? #文件内容如下 (consumption)#[2018 Spring Festival member Exchange Statistics] User (888888) to make a member
As the name implies, when we look up a dictionary, we look at the resources we need to find based on the index, and in Swift, every object in the dictionary contains a key and a value, and we use key to find the value corresponding to the current
Match methodPerforms a lookup on a string using the regular expression pattern and returns the result that contains the lookup as an array.Stringobj.match (RGEXP)ParametersStringobjRequired option. A string object or string literal to find
First, the introduction
Swift provides 3 types of collections, array data types, set collection types, and dictionary dictionary types. Array is used to hold a set of ordered data, the data angle is incremented from 0; set is used to hold a set of
The Basics tutorial introduces basic concepts, especially objects and classes.
The Advanced tutorial further expands the basic tutorial to illustrate the details of Python. Hopefully, after the advanced tutorials, you have a more comprehensive
Many of Dict's methods are similar to the list, with one by one of them coming in, and they will be compared to the list.
Nesting
Nesting also exists in the list, where elements are list, and in Dict, there are similar styles:
>>> a_list =
Introduces a powerful analysis of the network shell script, this script is split from the ezhttp, feel the need to introduce separately.
Screenshot of script run effect:
This script contains features such as:
1, real-time monitoring of any
Called Ajax. Here we talk about two ways
Method One: (Microsoft has its own AJAX framework)
In ASP.net, Microsoft has its own AJAX framework. is to introduce a using System.Web.Services space in the page background. cs file and then define a static
Let's take a look at a Zabbix and RRDtool drawing zabbixapi use of the monitoring data technology article, I hope that the following can help you.
After one weeks of death knock, Zabbix data and RRDtool drawing are clear, do the first operation of
Forget where it looks from, quickly forget, write down the record, also by the way recall. function createelement (name,attrs,style,text)... {var elem = document.createelement (name);if (attrs)... {For (key in Attrs)... {if (key = = "ClassName")... {
Related Topics Knowledge points
Related Topics get date of 2017-06-10 format
function formatdate (DT) {
if (!DT) {
dt = new Date ();
}
var year = Dt.getfullyear ();
var month = Dt.getmonth () +1;
var date = Dt.getdate ();
if
Author: Vamei Source: Http://www.cnblogs.com/vamei Welcome to reprint, please also retain this paragraph of the statement. Thank you.
The Basics tutorial introduces basic concepts, especially objects and classes.
The Advanced tutorial further
I am in the beginners python, the Chinese language will appear when the phenomenon of highlighting errors
# coding=utf-8
Import sys
def Main ():
# dict = {' A ': ' Apple ', ' B ': ' Banana ', ' C ': ' Car ', ' d ': ' Dict '}
# Print (dict)
jquery grep () filter Traversal array
Copy Code code as follows:
$ (). Ready (
function () {
var array = [1,2,3,4,5,6,7,8,9];
var filterarray = $.grep (array,function (value) {
return value > 5;//filter For more than 5
});
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