idvd 09

$x _pi = 3.14159265358979324 * 3000.0/180.0;Mars coordinate system (GCJ-02) to Baidu coordinate system (BD-09) algorithmfunction Bd_encrypt ($gg _lat, $gg _lon){Global $x _pi;$x = $gg _lon;$y = $gg _lat;$z = sqrt ($x * $x + $y * $y) + 0.00002 * sin ($y * $x _pi);$theta = atan2 ($y, $x) + 0.000003 * cos ($x * $x _pi);$BD _lon = $z * cos ($theta) + 0.0065;$BD _lat = $z * sin ($theta) + 0.006;}Baidu coordinate system (BD-

Today in the program appeared a bugger, debugging for a long time, finally found that the original is this problem. An experiment was done: Alert (parseint ("01")), when the value inside this is 01==== 07 o'clock is normal, but in "08", "09" will return 0 (this phenomenon appears in IE kernel browser, such as 360 browser will appear this error) (Google, Firefox is not affected)。 Access to information on the causes of this phenomenon: The interpre

Array-09. The local maximum value (15) time limit for the matrix is limited by MS Memory limit 65536 KB code length limit 8000 B award Program StandardAuthor Xu Jianchun (Zhejiang University)Given the integer matrix A of the M row N column, if the non-boundary element of a a[i][j] is greater than the next 4 elements, then the element A[i][j] is the local maximum value of the matrix. The subject requires the full local maxima of the given matrix and it

Clause 09 never call the virtual function during construction and destruction:#include The above is the interpretation of the original book, in fact, I think it can be interpreted as: virtual function pointer is the reason, the dummy pointer until the sub-class object is successfully constructed to point to the virtual function table of the subclass, and in the parent class's constructor, the virtual function pointer is also pointing to the parent cla

1. Error description [debug:]2015-06-09 16:56:19,520 [-------------------transcation start!--------------] Java.text.ParseException: Unparseable Date: "2015-06-09 hh:56:19" at Java.text.DateFormat.parse (dateformat.java:357) at Sun.reflect.NativeMethodAccessorImpl.invoke0 (Native method) at Sun.reflect.NativeMethodAccessorImpl.invoke ( nativemethodaccessorimpl.java:57) at Sun.reflect.DelegatingMethodAccess

Tags: Oracle training Oracle Database tutorial Oracle Video Oracle Tutorial Oracle Video TutorialOracle Video Tutorial GoalsOracle Video tutorial, wind Brother this set of Oracle Tutorials Training Learning Audit function, audit related parameters and views, audit level and permissions, Audit function installation/migration, audit function data cleaning, audit control, revocation, closure, Standard and high-precision database audit configuration and operation of the command and other daily manag

If you look at the C + + object model, you know that when you construct the base class, the complete vtable is not established (the table item is not replaced by the corresponding subclass function), so the function of the subclass cannot be called (that is, the virtual function in the constructor is the method in this class, not virtual). The book also says that even if a call is made, because the constructor calls the order in which the parent class is constructed, the members of the subclass

Tag: The parameter keyword that represents the clear complete Def function call function returns the Python full stackFunctions: Encapsulation and definition of code blocks and functionsGrammar:def function name (): function bodyfunction returns: ReturnParameters of the functionFormal parameters-arguments and argumentsFormal parameters:The variable that is written at the position of the function declaration is called the parameter. form of a complete. Indicates that this function requires

) {System.out.println (ID); SYSTEM.OUT.PRINTLN (name); return"Success"; } @GetMapping (Path= "/update3.json") @ResponseBody PublicString UpdateUser3 (@RequestParam (name= "id", required=trueInteger ID, String name) {System.out.println (ID); SYSTEM.OUT.PRINTLN (name); return"Success"; } @PostMapping (Path= "/saveorder.json") @ResponseBody PublicString saveorder (orderpostform form) {return"Success"; } @PostMapping (Path= "/savejsonorder.json") @ResponseBody PublicString Saveorderbyj

to use the old peaches and so on to make the installation disk, but using such as Image Writer (also known as Win32diskimager) or Ubuntu under the UNetbootin (need to install) to make the boot disk. For example, I use image Writer to ubuntu-14.04.4-server-i386. The ISO is written to the U-disk, thereby serving as the installation disk;Of course, this approach also has flaws:The entire U-disk is no longer available under window unless formatted;And with the old Peaches to do the installation di

): def __init__ (self, input_gender): = Input_gender def Printgender (self): print= Human ( ' male ' # Here, ' Male ' is passed as a parameter to the Input_gender variable of the __init__ () method. Print Li_lei.genderli_lei.printGender ()In initialization, the parameters are Input_gender and assigned to the properties of the object, i.e. Self.gender.Li_lei has the object nature gender. Gender is not a class property. After creating the Li_lei object, Python uses the obje

Original: MVC validation 09-Asynchronous validation using MVC's Ajax.beginform methodIn MVC, the methods for submitting to a future table are:1, Html.BeginForm (): Synchronization2, Ajax.beginform (): Async3, JS or jquery submission background This article experiences the Ajax.beginform () method. View model using System; using System.ComponentModel.DataAnnotations; namespace Xhelent.models { Public class Registration:ivalidatableobject {

Or is that sudo and su?When you log in with Su, add the following-Because of this, the environment variable will become the switch user'sThis can cause unnecessary trouble if you do not use environment variables.General Sudo is not allowed for remote logins, because passwords are plaintext and are very insecureBut you can use ssh-t [email protected] sudo-l this way to log inOkay, I'm done.20161129l04-09 old boy Linux OPS training-linux system user and

User group Management Groupadd groupmod Groupdel groupwd################################################User Group CategoryAdministrators groupNormal GroupSystem GroupGeneral Group################################################User Group Category:Private group: The system automatically creates a group with the same name as the user nameUser Base Group: Default groupAdditional groups: Groups that the default group thinks################################################Groupadd: Adding groups-g:gi

Sersync pressure test in the next sectionThis section focuses on the pressure test text of the previous section to do a real stress testTest out exactly what the sersync pressure limit is.From 10 to 100 per second# Tree |wc-l #查看写了多少文件# uptime #查看负载Here is the test script#!/bin/shcount=100While TrueDoFor ((i=1;iDo/BIN/CP 10k.jpg/backup/test/$i/10k_echo $ (date) $RANDOM |md5sum |cut-c 1-8.jpgDoneSleep 1For ((i=1;iDo/BIN/CP 30k.jpg/backup/test/$i/10k_echo $ (date) $RANDOM |md5sum |cut-c 1-8.jpgDon

to the L1 reference, but instead assign a value to the element of the table to which L1 points. As a result, L2 also changed.The reason, because the L1 L2 point has not changed, still point to the table. The table is actually an object that contains multiple references (each reference is an element, such as l1[0],l1[1], ..... Each reference points to an object, such as l1[0] = 10 This assignment operation does not change the direction of the L1, but rather on l1[0], which is a part of the Table

. Final method: The method cannot be overwritten. The private method defaults to the final method. Final class: The class cannot be inherited. An object of a normal type can also have the final keyword, which means that the object reference (reference) cannot be modified. That is, the reference can only point to an object. However, the contents of the object can be changed (similar to the static pointer in C). We'll cover the object references later.If a basic type of data is both f

.Stream and LambdaWrite a student class that has the following properties:Private Long ID;private String name;private int age;Private Gender gender;//enum typePrivate Boolean JOINSACM; Have you participated in the ACM contest?Creates a collection object, such as a list Generic class: Generalstack The Generalstack of jmu-java-05-collection of title set5.1 Code for Generalstack interface5.2 What are the benefits of generics compared to arraylistintegerstack in previous assignments?3.

/index.html will be able to access the content.The specific complete configuration is as follows:Const PATH = require ("path") const Htmlwebpackplugin = require ("Html-webpack-plugin") const Cleanwebpackplugin = require ( "Clean-webpack-plugin") Module.exports = {entry: "./src/assets/js/index.js", Output: {path:path.resolve (__d Irname, ' dist '), filename: ' Assets/js/app.js ', Publicpath: '/aa/'}, plugins: [New Htmlwebpack Plugin ({Template: './src/index.html ', filename: './index.html '}), ne

By accessing member variables directly through an object, there is a data security issue (such as age cannot be negative). At this point, we can't let outside objects directly access member variables.Private keywordis a permission modifier.Members can be decorated (member variables and member methods)Members that are modified by private are only accessible in this class .The member variables are generally decorated with private, and then the corresponding getxxx () and Setxxx () methods are prov