Now that 18 ora 18 is available, its installation interface and installation process are greatly changed. The installation interface is mainly changed to the Metro UI, and there is no package selection list during the installation process. However, the hard disk installation process is similar to that of fedora17, and there is no change.
For me, the main change of fedora18 is the change of input method set
Java study notes 18 --- final keywords modify variables, methods, and classes, study notes 18 --- final
The word final in English is known as "final". In fact, it also means"Unchangeable". In Java,The final keyword is "unchangeable" to better explainThat is, the final modifier is "unchangeable ". Final can modify variables, member methods, and classes, and also the parameters of methods, but the parameters
Method 1)
The command is as follows:
# yum install fedup# fedup-cli --network 18 --debuglog fedupdebug.log
The root permission is enabled.
Restart After the upgrade.
After the restart, an additional "system upgrade (fedup)" (similar) option will be displayed, and automatic installation will start,
After entering the new system, yum upgrade
The command is as follows:
# yum clean metadata# yum update
If there is a file conflict, You c
Assertion: 18 {code: 18, OK: 0.0, errmsg: "auth fails"}, assertionerrmsg
When auth is enabled, mongodump is executed and mongorestore has the following error: "assertion: 18 {code: 18, OK: 0.0, errmsg:" auth fails "}"
Actually, authentication fails.
Run mongodump -- help to find the problem. Just add the authenticat
Tags: mongodb mongoexport auth failsassertion:18 {code:18, ok:0.0, errmsg: "Auth Fails"}MongoDB 2.4.10 uses the Xucy administrator account under the Admin database to export the data and verify the failure.# mongoexport-uxucy-p-D test-c pro-f _id,sk2,sk3-o/data/var/log/mongodb/pro.json
connected to:127.0.0.1
Enter Password:
assertion:18 {code:
18 critical errors in Web development and 18 critical errors in web Development
In the past few years, I have the opportunity to participate in some interesting projects and develop, upgrade, restructure, and develop new functions independently.
This article summarizes some key errors that PHP programmers often ignore in Web development, especially when dealing with medium and large projects. Typical errors
You should know the 18 most commonly used skills in CSS2.0 and 18 in css2.0.
I. Use css abbreviationsUsing abbreviations can help reduce the size of your CSS file and make it easier to read.For details, visit: Common abbreviated CSS syntax2. Define the unit unless the value is 0.Unit that forgets to define the size is a common mistake for beginners of CSS. In HTML, you can write only width = "100", but in C
7. Unit III Task Four training: Method SetID can set a value for a class's properties: ID (ID number), when given a value of length of 18 o'clock, assigned to the ID, the duty length is not 18 o'clock, throw illegalargumentexception exception. To capture and handle exceptions in the main method, write programs to achieve these functions.
The public class Test {
private String id;//ID number should be
Java basics 18 and java basics 18
Import java. util. sums; public class Eightheen {/* determines whether a prime number can be divisible by several 9 */public static void main (String [] args) {sums input = new sums (System. in); System. out. println ("enter a prime number:"); int a = input. nextInt (); int B = 9, I = 0; if (judge (a) = 0) {while (B %! = 0) {B = B * 10 + 9; I ++;} System. out. println (a +
18: Cocktail therapy, 18 cocktail therapy18: Cocktail therapy
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65536kB
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Cocktail therapy, originally referred to as "efficient anti-viral therapy" (HAART), was proposed by a Chinese-American scientist, he freshman in 1996, it is used in combination with three or more antiviral dr
18. C ++-[] OPERATOR usage, differences between function objects and common functions (detailed description), 18. c Operator
In the previous chapter, I learned the string class from the 17.c++-string class (detailed description) and found that each character can be accessed through the [] overload operator.
For example:
string s="SAD";for(int i=0,i
Next, we will write a [] overload operator to simulate the
Data Structure BASICS (18) and data structure basics 18Hash table
Based on the set hash function H (key) and the selected method for handling conflicts, a set of keywords are mapped to a finite continuous address set (interval, the keyword "image" in the address set is used as the storage location of the corresponding record in the table. In this way, the searched table constructed is called a "hash table ".
How to construct a hash function
1. Direct
Data Structure BASICS (18) and data structure basics 18
The red/black tree is a self-balancing binary search tree and a data structure used in computer science, A typical purpose is to associate arrays (map/set in C ++ STL ). It was invented by Rudolf Bayer in 1972. It is called the symmetric Binary Tree B. Its modern name is Leo J. guibas and Robert Sedgewick obtained in a paper written in 1978. Although t
18 latest minimalistic websites and 18 minimalistic websites
Simple design is always popular because they use simple ideas and resources to express concepts. The field of web design is greatly influenced by minimalism design, many talented designers always use a few simple tools to design amazing websites, such as fonts and geometric figures. The advantage of simple design is not only its elegant style, b
IOS development diary 18-runtime advanced, ios diary 18-runtime
Today, the blogger has an advanced runtime requirement and encountered some difficulties. I would like to share with you the hope to make common progress.
I believe that after reading the previous blog post of the blogger, you have a certain understanding of the runtime. When the interviewer asks you what the runtime is, I believe that you will
Linux-iconv command (18) and linux-iconv command 18
Iconv commandIt is used to convert the file encoding method. For example, it can convert UTF8 encoding to GB18030 encoding, which in turn works.Common options
-F font1 :( from) convert the font1 character encoding
-T font2 :( to) convert to font2 character encoding
-L: List known encoding character sets
-O: file: Specifies the output file.
In
18 critical errors in Web development and 18 critical errors in web Development
In the past few years, I have the opportunity to participate in some interesting projects and develop, upgrade, restructure, and develop new functions independently.
This article summarizes some key errors that PHP programmers often ignore in Web development, especially when dealing with medium and large projects. Typical errors
World War I Windows 10 (18) and World War I 18
[Download source code]Backwater world war I Windows 10 (18)-binding: bind with Element, and Indexer, TargetNullValue, FallbackValue
Author: webabcdIntroductionBind to Windows 10
Bind to Element
Bind with Indexer
TargetNullValue-value displayed when the bound data is null
FallbackValue-value displayed when bindin
18 JavaScript and jquery special text effects code sharing, and 18 jquery
18 JavaScript and jquery special text effects code sharing
JQCloud label cloud plug-in _ popular city text label cloud code
Js 3d tags cloud special effects keywords text spherical tags cloud code
Native JS mouse hover text ball zoom show effect code
Native js text animation circular a
After walking the 18-mile mountain road, I finally came to the blog Park and walked the 18-mile mountain road.
Today, my blog has been successfully registered and I am very pleased to hear that I have kept a note on it.
Half a year ago, I had just stepped out of the campus as an IT hacker and had no idea about anything in the IT industry. My college major is mining engineering, and I only used VB as the pro
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