2fa verification code error

Original article: C # basic verification code identification methods and source code Let's talk about the background of this writing. A friend has been doing something recently and has already done a good job. Finally, I want to be more perfect, so I proposed to give this verification

It is as follows: Instructions for use You need to use the jquery library file and the formvalidation library file [download the instance Code] Http://jquery.com/ At the same time, you need to customize the CSS style for displaying the error message. Use instance 1. Contains the file sectionCopyCodeThe Code is as follows: Ii. html Section Copy codeThe

for getting the focus (if you specify a style, add @ before the style name, so the text prompt cannot contain @ at the first letter @)OnBlur: Text prompt with no focus (if a style is specified, add @ before the style name, so the text prompt cannot contain @ at the first letter) (Verification failure prompt)OnSucces: Text prompt for successful verification (if a style is specified, add @ before the style n

This is a jquery based on the implementation of the mobile phone verification Code countdown effect codes, to achieve real-time display seconds Countdown function, but also to achieve the function of mobile phone number format verification, is a common website registration to send mobile phone verification

recognizeI enlarged the image twice times, I found that sometimes 8 will be recognized as 3, so I simply zoom in one more times, found that there is no problem, although it seems obvious, but OCR no matter the beauty of the UglyDid you follow the case code and run? And then you found out that the program ran an error?Here, add the uselegacyv2runtimeactivationpolicy= "true" node to the startup node of the p

str_replace(array('','"',"'",' Therefore, the output content does not have any special characters. I tried to put the content in But none of them are valid. Even more strange, it seems that this error only appears in this article (that is, it only applies to specific characters) and will pass the verification in the feed that does not include this article, for example: http://validator.w3.org/feed/check.

) {if (msg = 1) {alert (" The verification code is correct! ");} Else {alert (" verification code error! ") ;}}) ;}); // Number + letter verification $ (" # getcode_char "). click (function () {$ (this ). attr ("src", '

) {if (msg = 1) {alert (" The verification code is correct! ");} Else {alert (" verification code error! ") ;}}) ;}); // Number + letter verification $ (" # getcode_char "). click (function () {$ (this ). attr ("src", '

I don't know how it works recently. I always like to study the implementation of some functions of some large sites. I think it is a bit interesting to read the implementation of verification codes for several large sites over the past two days. Therefore, a similar mechanism is also implemented in. net. Let's take a look at the external performance of the verification