decimal number converted to binary decimals, using the "Multiply 2 rounding, order" method (do not understand, this is not a recruit, this is too basic), We found that 0.4 could not use the binary accurate representation, in the binary world it is an infinite loop of decimals, that is, "display" Can not "show", let alone in memory (floating-point storage includes three parts: sign bits, digits, mantissa, specific no longer described), it can be under
The HTML tags ' ' ' > ': Using GT to achieveSpace: More space in the HTML by default also shows only one, in order to display more than one space, you can use to implement, a one to represent a spaceline break:Link: target= ' _blank ' means when opening a link with a new page links In addition to being able to jump to outside addresses, You can also jump within the page jump to the specified ID, using the #id name to jump to the specified cl
[Personal use of. Net class library] (1) INI configuration file operation class,. net class library
When developing an interface program, the IP address and port configured for the interface program must be configurable, And the INI file read and write operations are implemented in the Windows Api native, therefore, you only need to call methods in the Win Api to operate the INI configuration file. The key
valid in the project I am currently participating in.You need to use the Guide to refer to this address: http://www.cnblogs.com/2050/p/3913184.html(The plugin in the Google mainstream building browser is not a problem, but there are bugs in IE and Firefox, in my project, no matter which version of the plug-in, the bug is always there (ie and Firefox in the first click Invalid), so can only think of other ways, and my approach is that after the page l
1.jquery1 2.vue1 3.swiperIf you do not want to put the Swiper file in your project, you can use the Swiper CDN service.The following is a version of the Swiper CDN address, to change the 4.x.x to the appropriate version, such as 4.0.2 (or 3.x.x version).1 2 3 4 5 6 7 Web_ Some common online script address records (for personal use)
Personal Edition | resolution | control | Upload the piece of rubbish after traversing all the posts about uploading large files in csdn. (:-))
upload large files, there are several ways:
1, Shi HttpWorkerRequest method, too difficult to read:-(
2, use the control of third party aspnetupload want Money!! Forget it, we still like it for free.
3, modify Web.config file, but cannot catch error.
4, the
with another way to open the registry on a remote computer, using the following method:public static RegistryKey OpenRemoteBaseKey (registryhive hkey,string machinename);The method prototypes for deleting subkeys are:public void DeleteKey (string subkey);This method is used to delete the specified primary key. If the subkey to be deleted also contains the primary key then the delete fails and returns an exception, if you want to completely delete the subkey under the extreme directory of the su
1. Enter the C drive:C:2. Enter the folder text:CD text3. Return to the previous folder:Cd..4. Create folder text: (mkdir can be executed on WINDOW,LINUX,MAC)mkdir textMD text5. Create an empty file App.js in the current directory:
(where "." Represents a newline, ">" represents output)
Echo. > App.js
Write content to app.js file: var a = 1;
var 1; > App.js
Append content to app.js file: var b = 2;
var 2; >> App.js6. Another way to create a app.js file:
;
‰
thousand percentage points
°
deg;
°
Degree
√
radic;
√
Square root
∞
infin;
∞
Infinitely large
5. Direction class
←
larr;
←
Left Arrow
↑
uarr;
↑
Up ARROW
→
rarr;
→
Right Arrow
↓
darr;
↓
Down ARROW
↔
harr;
↔
Left and right arrows
The pits that have been encountered:
Using the Gitbash installation Hexo (NPM environment variable configuration) Note Add the PATH environment variable after installation to make the npm command effective. The new version will already automatically configure the path
1
; C:\Program FILES\NODEJS\NODE_MODULES\NPM
Second Pit: Install the old version of Hexo, uninstall:
Q: How do I uninstall Hexo?The a:3.0.0 version executes np
1-(void) WebView: (Wkwebview *) WebView didcommitnavigation: (null_unspecified wknavigation *) navigation{2 //gets the current page URL3NSString *js =@"Document.location.href";4[Self.webview Evaluatejavascript:js completionhandler:^ (ID_nullable Response, Nserror *_nullable Error) {5NSLog (@"Response:%@", response);6 }];7 8 }9 Ten //This call can only be placed in the finish, or it will quote JS exception One- (void) WebView: (Wkwebview *) WebView didfinishnavigation: (wknavigation *
future Learn, EDX offers a number of courses and 15 professional certification courses from a variety of top global universities. Launched in 2012 by Harvard University and MIT, the platform aims to expand open learning across the globe. Most courses are generally self-adjusting; This means that you decide how fast you want to learn the course. The course is free and you need the only payment, if you wish, is the certification to purchase your completed course. On the other hand, professional c
properties that apply to most HTML elements : Id,class,style,title;1. The browser automatically adds a blank line before or after the paragraph.All consecutive empty lines (line breaks) in the 2.HTML code are also displayed as a single space.HTML citations, references, and tag definitions : Define an abbreviation, Define text orientation, Define a long reference, Define references, citations, define a definition project.HTML text formatting tags : , bold text , text-focused , itali
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